I did start a Swedish course at the very beginning of my stay in Sweden. As the level of my course was too high for me though i asked to change into a lower level. The course i could change to didn't start before April though what was in the second half of my stay.
As i got confronted a lot with swedish during my practical placement it would have been very helpful to visit a course during the period of my practical placement. It also would have been very good if i had visited a Swedish course back in Switzerland before my arrival in Stockholm.
The second course i didn't finish, as it was very time intensive (twice 2hrs a week). As well because i wasn't confronted with any swedish at my course anymore as the course was all in english.