Comfortable, Very Clean, and location, location, location! Love my stay here. The first time with my husband; the second time had my daughter with us. Got a loft-type room and it was summer! Germany doesn't believe in A/C! It was hot; but comfortable enough to come back for the third time. Lots of good walk for food, entertainment, and shopping!! What else to you need?

Room was clean and bigger than "average" but it was very warm with no AC. I hate to think what it would be like in summer. The (free) wireless internet access is slow. So slow that web pages gave up loading in the end and the browser reported an error. It worked in the end, though. Slowly.
Two single beds pushed together (with separate sheets and duvets) wasn't ideal for me, being on my own. Also no master switch for the lights - you have to turn them all on and off individually.
The best thing about this hotel (if you're on business, at least) is the location. It's a 2 minute walk to at least ten decent-ish restaurants and a couple of popular bars.

Stayed here together with a group attending a seminar at a nearby major reinsurer (five minutes walking distance). My single room was reasonably big with a comfortable bed, seating arrangements as well as a desk. Internet connection is free via Wi-Fi but speed is quite pathetic. The bathroom had a shower and soap/shower gel in dispenser bottles (great for those of us environmentally minded) with towels in reasonable supply.

Breakfast buffet (incl.) was good with cold and hot selection. Wonderful bread basket!

There is no restaurant but here's a great recommendation for those who like nice Italian food. Check out La Tazza d'Oro which is just up the road from the hotel; great food and friendly atmosphere.

Stayed here during a trade fair, and paid the typical ripoff prices (ca. 300 Euro a night)
Internet connection is very good, and staff is very helpful (with one lethargic exception), speaking also English.
A parking garage is directly below, but requires a good driver to get in, as it is very small.

Restaurants and bars are close, and a longer walk or the nearby subway station brings to the city centre. The trade fair is ca 30 mins away, depending on traffic.

Bad thing was that I explicitly ordered a nonsmokers room, and got a room which smelled like at least ten smokers recently died in it. Of course, no other room was free to change to. The shower took 10 minutes to produce something that could pass as warm water. This in regard of the prices is rather inacceptable, trade fair or not.