I will answer the question in English given that I don't speak Swedish yet (that's why I follow courses at Berlitz :) ).
At Berlitz I follow private lessons in order to learn Swedish from scratch. The organisation of the courses went very well, the teacher at Berlitz are really "flexible" and it is easy to arrange the courses (possibility to follow them at home, at work or directly in Berlitz office)
I recently started the process and I am really happy with Berlitz. The way to learn the language is a bit troubling in the beginning but seems to work really well. The teachers are really professional, always ready to help and know which points need to be deepened. The courses are also based on 2 books (one more "courses", the other one more "exercises") and audio recordings, which can be downloaded on the Internet as well. Practical when you want to work at home!
In a nutshell, I highly recommend Berlitz to learn a new language!