I hope to be interpreting from Swedish in the not too distant future, so this time I did Level 4 (advanced learners), and was not disappointed.
Just a few of the things that make the course so good: the teachers are all superb, the atmosphere is relaxed, you get plenty of variety during the lessons and you gain a real insight into Swedish life and culture, as well as actually learning the language.
All in all I got a lot out of Glossa, and I'd certainly recommend it to others. Both years I left Uppsala having learnt way more than I expected, while still having had great fun.