Hail Satan, girl!
4100 isn't bad at all, that's for sure, depends on what extra costs there are. It says available internet, is that for free? Is there any central heating? Furniture and stuff included?
And, Jens, if I'm moving somewhere, I'll probably not want to go over 4,5k a month including travelling costs. Is that apartment in your building or somewhere randomly else? I'm thinking that living in the same house as someone I semi-know is a pluss. How long is the train time? More than 2 hours both ways? I'm thinking that a little while isn't a bad thing, since IKT studies has a loooot of math, and a train will be somewhere good to read, but approaching 4 hours of travel time a day is a bit too much. I'm already doing 1,5-2, so that wouldn't be any problem at all.