Best Western is not our choice usually, but this hotel maintained a distinct character. It's in a terrific location on a quiet pedestrianized street withing walking distance to the canal. It's a little tired but price reflected that. Full buffet breakfast was outstanding! We were there in shoulder season and negotiated a good price.

Hotel is old, at reception desk there is noone speaking English, whater was cold, no internet in the room

I normally stay in small pensions, but was glad I chose the Imperial for 5 nights. I paid only 45 euros (the normal listed rate is 63 - ask), and found the room to be very quiet and comfortable. The aircon worked fine, bed comfortable, bathroom good, and staff helpful and friendly.
Some rooms have balconies, others don't , so ask (mediocre view, though). They have a computer to use with internet for free, and a restaurant which I didn't eat at. The very beautiful city has lots of great places to eat.
The hotel is about a 15 minute walk from the train station, but right in the heart of the city, so you can walk everywhere.
I checked out other places for my next visit (not because their were problems -just normal practice), and didn't find any nearly as good, so will definitely stay here again.