Stayed Sunday to Friday on business and had no problems. I would agree that it has little style, but it is an urban hotel, just a few hundred meters from the town centre.
The rooms were very clean, the shower was powerful, TV was a little on the small side. The beds seemed very narrow although it was adequate for me.
Being a veggie, I was concerned about the breakfast, especially with it being in Germany-sausages and all that. But it was fine. There was a broad selection of food.
I couldn't fault anywhere downstairs. Restaurant, although pricey, served very nice food. The bar area was small and not very intimate. The staff that I came across seemed friendly enough.
I believe there was a sauna somewhere in the hotel although I didn't get the chance to use it. A pool would have been nice.
The parking was fairly limited and we struggled for a space at times. There was an underground garage but was always locked. Perhaps they open it if asked?
There seemed to be many business guests there.