I always check out hotels on Tripadvisor before booking, and was impressed by the fact that management had taken the time to reply to many of the comments.
I booked by telephone, with charming and helpful Martina, who listened to my request for a room with a wet-room shower which is more suitable for my disabled husband. As we were en route by train to Austria we booked a stopover each way to break the journey from France.
I cannot praise the staff highly enough. The front desk had helpful girls, in particular, Amelie. The rooms were ideal, quiet, air conditioned, and with excellent bathrooms. We had room service breakfast , brought on a table decorated with a rose.
At each stay we ate in Zeppelino's and, although one sandwich order was very late we had to forgive the waitress, who apologised profusely that she had forgotten it. On return my husband ate 'the best steak ever', from Iowa, and we were looked after very helpfully, waiters noting that my husband walks with a stick and so offering us a table away from the steps.
All in all this hotel is one we would reeturn to. For us the location was ideal, opposite the station, but more important was the feeling that we were welcomed and cared for.

I stayed at the hotel in April this year and only got to compliment it now. It's a hotel that deserves all praise, amazing staff, a real assett. Every single person in this hotel is so attentive and seems to be there only for you.
Nice and clean design and amazing in room/welcome amenities. Amazing breakfast buffet, wide choice of everything. Me being a 'healthy' eater, I could not wish for more.

The hotel and rooms were fine, however, the front desk attitude spoiled the stay for me. Not only were they cold, they couldn't/wouldn't answer basic questions such as "where can I go buy water and snacks" "every place is closed". (It wasn't.) I wouldn't stay again even if the location is ideal. On a positive note, the Mercedes-Benz Museum is outstanding.

The hotel is right opposite the train station which was very convenient for me. Even though it is an old hotel, the room I had was very nicely renovated.

Bed: I had a very comfy queen size bed.
Internet: expensive (14.50 EUR/24h) but worked like a charm
Spa and Pool: beautiful (!) pool side and a wonderful steam room and sauna.
Bath robe was on the room. Slippers where missing and when I called, they where delivered in no time.
Staff: very friendly and fast.

Cannot say anything about the breakfast, as I did not have any (I went across the street and had some croissant and excellent coffee at Segafredo bar in the main station).

Altogether I can recommend this hotel and most likely will be back.