Groningen is easy going but very international. Due to it's kind of "remote" location (well, Amsterdam is only 2 hrs. away) it's an island one its own with lots to do here: culture, nightlife (véry late!) but also a lot of beautiful quiet nature in the surroundings, You take a bike and you are in the middle of nowhere in just 15 minutes: lakes, woods in the south, or at the northside of the city: beautiful endless tyoical dutch landscapes with lots of famous black and white frisian cows, mills, canals, and even a real river, Reitdiep.
Great place to live. Not sure why 'Fun' and 'Nightlife' are classified as 'Okay' - it's actually great, better than Amsterdam in my opinion. 60k students on a population of 200k. Dozens of bars and clubs in the same area, drinks are cheap, bars don't close until 4-6am. Expenses are lower than listed too.