Khan, i'll answer to only two of your questions because Grzegorz answered for the rest and I don't want double it. You asked what are the characteristics of this city and people of there? In few words: Wroclaw is often called a polish Venice - we have more than 100 bridges in our city because of river Odra which flow through the city. Besides we have here a lot of beautiful places with many climatic (with an uniqe atmosphere) pubs (I recommend you one them, called Mleczarnia by the Wlodkowica street), lots of cinemas and theaters. There are a lot of parks too, so you can have a rest on a fresh air, if the wheather allow to do it of course

People in Wroclaw are very friendly, especial students. I recommend you to find living room near Wittigowo (it's by the Wroblewskiego street) - it's a camp of study houses (without comment

) or Grunwaldzki square (there are a lot of study houses too). I'm sure that you don't waste your time if you come to Wroclaw

You asked are there many Erasmus students or foreigners in the city? The answer is: YES YES YES! You will have an ocasion to meet people from many many coutries.