Organising the exchange semester in Edinburgh did not require too much time, but in some aspects it was a bit more tricky than expected.

The first part was to be formerly accepted to Edinburgh, and getting access to the application and student portal EASE. Through EASE you can manage basically everything, from courses to lectures and grade certificates. To get registrated as a student and get access to EASE, I had to fill in some forms, and send a photo per postal mail. This part was organised well, and I had help from both coordinators in Stockholm and coordinators in Edinburgh.

Finding a research lab for my 16cp project was also straightforward. After being accepted as an exchange student, I applied to a couple of research groups and found my final group quite quickly. To find the group, I used the website of the University of Edinburgh, and checked different department sites. My group belonged to the department of physiology, but had just moved to the department of neurobiology at the Roslin Institute. We agreed on a starting date, and I filled in some forms to be formerly accepted to the group and the institute.

The more tricky part was the organisation of my courses. I had e-mail contact to two exchange study coordinators from Edinburgh, but the communciation was slow and inefficient.
Since I was running out of time, I decided to organise my courses independently. To do so, I used the course catalog from the School of Biomedicine from the University of Edinburgh and sent a few mails to the course secretaries of courses I found interesting. You can either just look at the different subjects, or you can search for key words. The course catalog can be found here:  http://www.drps.ed.ac.uk/14-15/dpt/cx_s_su722.htm

I went abroad in semester 3 of my Master's studies, which corresponds to SCQF level 9 or 10. The Scottish credit system is slightly different from the one at KI, so that you have to divide the Scottish credits by two. I took a course giving 20ECTS, corresponding to 10cp at KI.

Many of the course descriptions state that the courses are not open to visiting students; however, if you find one of these courses particularly interesting, you can always send the course secretary a mail and ask if they can make an exception. I did the same, and I got a positive reply, so that I was allowed to attend a course normally not open to visiting students.

After being accepted to the course, I also send a mail to my programme director to make sure that the course would be accepted as a replacement for the elective track I would normally take at KI.

There are many introduction courses and activities in late August/early September, but unfortunately I didn't arrive in time so that I can't share any experiences. However, I heard that many of the introduction events are really good, especially to get an idea about Edinburgh, the university, and to meet people. So if you have the chance to arrive a bit earlier, don't miss out on the activities!

I arrived in the second week of September, about a week before courses started. Mostly, I spent the time looking for a room, but it was also nice to have some free time to walk around and get accustomed with the new city.

The cost of living in Edinburgh is comparable to Stockholm. For a small room in a big flat and a very central location I paid 320pounds/month. The average rent is most likely around 350pounds/month or slightly more.
Food prices are also comparable to Stockholm, maybe even a bit higher. However, going out and eating out, while still expensive, is a bit cheaper than in Sweden. So, overall, staying in Edinburgh will cost you around the same as staying in Stockholm.

Finding an accomodation in Edinburgh is definitely easier than finding one in Stockholm. Other than in Sweden, many Scottish students live in big flats which they share with other students, so it is possible to find a room in a student flat. The best way to start looking is probably gumtree, where new ads are posted every day.
However, it is much easier to find a room once you arrive in Edinburgh than looking for one while still abroad. Most ads I read were looking for someone to move in right away, or within one or two weeks, and they invited people to come by and visit directly. If you can't visit because you're not in town, chances are you won't get a reply.
One thing to consider though are the prices, which are comparable to Stockholm or even higher (the average was around 350-400 pounds/month).

Before coming to Edinburgh, I booked a few nights in a flat through airbnb (I found that prices were more reasonable than in hotels/hostels, and I wanted to have my own room to store things in safely) and looked through some ads at gumtree. The first few days of flat hunting were really frustrating, but after seeing 5 or 6 flats I finally found a room in a nice central area for 320 pounds/month.

It might also be possible to get a room through student housing, but I have no experience in that. However, I heard that it might be difficult to get if you stay only one semester, and that prices are unreasonably high. But as a plan B it might be worth to consider.

There are plenty of nice areas to live in Edinburgh - anywhere close to George square is ideal if you take courses/work in the main university. It's also close to Meadows, which is a beautiful big park close to the university.
I had to take a bus to Roslin every day (about 40 min bus ride), so the most convenient location for me was close to bus line 4. I stayed at Tollcross, which is about 20 min by foot from George square and 10 min to George street, so it's very central. However, if you don't have to go to Roslin every day, I would definitely recommend to live in Marchmont or Bruntsfield, or one of the other areas around George square and the Meadows.

In general, I didn't find the studies in Edinburgh much different from the studies at KI. However, I only took one course, so it is difficult to judge. I found the relationship between teachers and students to be very friendly and open, one could always ask questions during lectures, and was encouraged to participate in dicussions during practical work.

I did not experience any difficulties with the language. While it was a bit difficult to understand the Scottish accent at the very beginning, one does get used to it quite quickly. 

Edinburgh is a great city, and there are lots of things to do. I joined a hillwalking club at the university, which organised day and weekend trips to the hills surrounding Edinburgh. This was definitely a great experience. There are many other clubs and activities organised by the university, so you can find anything you like.
Through the lab and through the course I took it was easy to come in contact with other students.

In conclusion, I believe that going to Edinburgh for an exchange semester was definitely the right choice. I experienced a number of new things, from the lab, to the University life and the many different activities that the city offers. The university is a great place to study, and the city is immensely beautiful.
 I would recommend anyone to go to Edinburgh for an exchange semester.