We stayed at Ibis Hotel Hannover City for one night two years in a row.
It is a good quiet hotel a little away from the centre, but very comfortable when you drive: there is plenty of free street parking on the right from its entrance.
The rooms are not big, but accurate. No fridge.
Breakfast is excellent.
I would rather rate this Ibis somewhere between 3 and 4 star (2 star is its official rating).
- Free Wifi