We spent a week end in that hotel and we have to say that all went well.
The personnel is very friendly and helpful.
Our room is big and clean. I would have prefered to bigger bathroom or a second as we are here with our 2 kids but for a week end it is okay!
In Stuttgart, hotel rates are quite high as there are fares and exhibitions the whole year long.
Breakfast is 10 eur per pers but is really good.
Parking spot 7 eur a day which is not that expensive.
A lot of people complain as there is no lift. I have to say that with the luggage or for old person it may be a challenge.
The restaurant is also excellent.