Studying at the GLS Berlin.

Hello, I´m a planning a short trip to Berlin during April – May to learn German, and I have heard a lot from a College called GLS at Berlin, and people saying that is a very cool place and stuff, however, I would like to know what kind of people could I except to find during such period of time, for instance, it seems that during the summer June-August there`s more young people and the groups tend to be bigger.

So, I would really appreciate if somebody that has been during April – May can tell me a little bit of its experience at the GLS Berlin; how many people were in your group? How old they were? Did you have fun? Did you really learn some German? Etc.

Thanks for any commentary.