I requested a travel agent at home to book a room for 2 nights stay at Sheraton Offenbach, and then I requested online for an extension of 2 nights. Got everything settled without any issues at all. So, in my experience, the bookng process is hassle-free and friendly.
I arrived at the hotel late in the evening, and promptly received the card to the room. The staff were very friendly.... they provided help and support regarding other tourism related questions also. I am happy to have stayed at the hotel, overall. The hotel has a modern contemporary feel, but adds some special features. A bridge on the first floor leads to another building with classical look on the outside, but refurbished on the inside.
The room I stayed in was on the 2nd or 3rd floor, and everything was fine, except that the window only showed another building..... so, not great.
The breakfast was good, but for a very choosy eater like myself, Halal items of course were limited (as expected). Still, I enjoyed the breakfast.