We had an average stay at the reasonably spacious Mercure Hotel. The location is very good, a quick walk to the Stuttgart Vaihingen train station. (Be careful when getting there that you head towards the right train station, since oddly enough there are two different Vaihingens in the region!) We had a pleasant view of the nearby park, and since it's one of the tallest buildings in the area it's difficult to get lost.
The staff was friendly but unobtrusive, and the room was reasonable. We were pleased that the windows open, although the shades are automated and seem to be raised and lowered at random, possibly controlled by the room temperature. This was a little alarming! The phone dialing scheme is a bit more complicated than normal, and getting an outside line took some figuring out.
The most frustrating thing about the hotel was that the holder for the detachable showerhead was mounted incorrectly, so we basically had to hold it while showering to avoid soaking the rest of the bathroom.











