I almost always stay at airport hotels when I have to wait for a next day flight. But I wanted to see some of Frankfurt and between an incredible rate from Orbitz and the reviews, I booked a Saturday night at the Pure.
The hotel lived up to my expectations-easy to find (just follow the directions on their website), nice people, nice room, great breakfast and walking distance to the Rhine and museums. My room was on the 3rd floor overlooking the street fronting the hotel; I could hear the traffic if I opened my window but it was quiet when closed. I loved the thick white towels and the silky feeling sheets and pillows. You can order room service since they have a sister hotel around the corner, or there is an Italian restaurant next door which had good reasonably priced dinners.
The Opera is near by and the Rhine river and museums are on the other side of the train station; you can walk through the station and take an underground passage to steps leading to the street level on the other side of the train station. It's another 3 blocks to the river from there. The package store in this passageway is also a good place to buy last minute chocolate and other goodies to take home for friends or yourself.
There is a lovely park and jogging path along the river front and two bridges which cross it to the side where the museums are located.
I thoroughly enjoyed my stay at the Pure and will stay here again.