I have been staying in WI in many hotels (business reasons) but this is my favourite one. The standard of the rooms is good, beds are big and comfortable, lots of pillows. Each room has ironing facilities which is really convenient when you travel for business reasons. The hotel offers free water every day.
Bathrooms are really small though.
Gym has old equipment, the running track is a bit creepy, but if you want to some training, you can do it. Swimming pool is small, so I did not try it.
The location is good, if you dont want to pay the parking fee, you can always park on a nearby Rheinstrasse which is never really a problem. The main market place and shopping street are 10 mins walking away.