I have stayed at Roomers twice over the past few months (8 nights total) and after my first stay I was not convinced as the hotel is very dark and I also had some problems with housekeeping (they were cleaning my room 2 nights in a row at 6pm when I had returned from work and had to wait in bar!). After my second stay I had a chance to discover more of the hotel and it really grew on me. The spa on the top floor was always quiet and very relaxing to lie in the jacuzzi and watch the sun go down and the ambient lighting take over. The bar serves snacks whilst having a drink up to around 8pm which was nice. Again my second visit was better than the first when service was lacking and could end up waiting a long time to get a drink. I have only eaten in the restaurant once but the food was to a very high standard and would definitely eat there again. All in all I would say that this is the best 5* hotel in Frankfurt that I have stayed at (have stayed at 3 others).