We really enjoyed our visit - the location is central, it is a historic building and is quite clean. Be careful if you are driving to the parking garage. Google maps seems to favour routes through the city centre that are quite pedestrianised and you might easily end up being fined for driving in the 'restricted' zones. The best route to the parking garage is to come via the city ring road (i.e. around the city walls) and from the north-east side.