Stayed in the hotel to ease my return trip to the US. It is conveniently located not far from Frankfurt main train station (25Euro cab ride) and provides a shuttle to the airport (additional charges applied for me). The staff was extremely welcoming, helpful, and informed. I enjoyed a drink at the bar, which was well stocked and the bartender was also friendly. I also purchased the breakfast buffet, which was a great value for the price. Again, the staff here was exceptionally friendly and helpful. My single room was small, but very sufficient and clean. The hotel was quiet. The only downside was the mattress cover, which seemed to have some plastic sheets underneath the linen, therefore making it a rather sweaty deal (I turned the heater completely off and it was freezing outside, so I wasn't hot due to an overheated room).
Unfortunately, I had no time to enjoy the pool and fitness room.