The room is part of a shared flat in Hannover Nordstadt. There are two very nice people living in the flat - Hannah and Jimmie. Both of them speak English fluently and very helpful. So if you have any questions about the flat, where the closest supermarket is or where you can find some nice bars and restaurant around - just ask them.
The tram station is a 5 minutes walk away from the flat and you reach Hannover Messe (the fair) nonstop in 30 minutes.