My husband and I stayed at the Stay & Learn Residence Hostel. We flew into Frankfurt on our way to Prague. We stayed in a double room with private bath. Both the room and bath were clean and comfortable. The main train station is across the street and was very convenient for us to catch our train the next morning. We had made a reservation and had no problems when we checked in. There is internet access on premises for a small fee. This is a great place to stay if you are staying for a couple days.

Had such a great time here already planning on going back!
Everything was first class,people awesome!! The staff are young, cool and know all there is to know about where (and where not!) to go!
Couldn't fault this place in any way at all!

We had a wonderful stay in this hostel.
Very easy to find and a convienient location
city tour was great

Good location - as mentioned in Sex area but it didn't feel unsafe.
Clean room and bathrooms - slightly noisy but overall excellent value for the location.
Friendly staff and would stay there again!