Dzien dobry! I spent my exchange in the Warsaw University of Technology in the faculty of Electronics and Information Technology. The university had a lot of faculties, some pretty far from the city center but my faculty was luckily next to the main building, not far from the center.
I had an awesome trip, made a lot of new friends and got to know different cultures. Some may have a bad image of Poland but I have to say, Warsaw was a beautiful city and full of life all the time. The traffic may first seem a bit crazy but you get used to it quickly.
I would recommend going to Warsaw and if you ever do, you must go and try pierogis!