I expected the hotel to be closer to Frankfurt. But it is actually about 7-8km away by car. Also, if you set your GPS to Kaiserstrasse in Frankfurt you will be in for a surprise (as I was :-) ), there is a Kaiserstrasse in Frankfurt and one in Offenbach too. The one in Offenbach is were you are supposed to go if you stay at this hotel.
Anyway...
Benefits: The hotel is ok, the rooms are clean, the staff were friendly and helpfull. No disturbance from neighbours etc. If you travel by a car they have a secure parking which they charge for. But still, it might be worth considering as parking in the street seemed like a hassle to me. If you go by car it is quick to drive to Frankfurt city centre, also there are lots of parking houses, so no problem.
Drawbacks: The wireless Internet in my room did not work well at all, I told the receptionist about this when I checked out and she removed it from my bill, so that was a good sign of service mentality.
If your german is not top notch, you might find it a bit boring that all channels on the TV are german ones. Anyway, I got to practice my german and watched Cosby dubbed to german hehe, not quite the same...
All in all, the hotel is ok but if I go back I would like to stay IN Frankfurt, prefferably a bit closer to the city centre.