I stay here every year for a week in November for work. The average stay is 2,500 euros. This year, I accidentally booked an extra night which was my mistake. I asked if Roomers, as a courtesy, would refund the extra night, and they said no. Over the last 3 years, I've spent over 8,000 euros at this hotel. Refunding 300 euros doesn't seem like a big deal to preserve loyalty, but they don't see it that way. I'll be staying elsewhere next year. Also, they've stopped leaving water in the rooms and I got charged 11 euros when I asked for a bottle. The spa is average, the rooms are very dark, and the immediate area has gotten unsafe (lots of junkies near the train station). You can do better in Frankfurt.