Staff was friendly and helpful, Everything seemed pretty new and very clean and well done. Things aren't quite sorted out yet though...phone was dead for 3 days, internet was frustratingly problematic (but they eventually had a knowledgeable staff member who helped), Breakfast is extra, but a pretty full spread.
Convenient to Central Train Station + center of Frankfurt.
If one walks straight to Mainzerlandstrasse and down one block to the left, one can avoid most of the more "seedy" aspects of the area (many people hanging around in doorways and a lot of trash on the ground). I am an experienced, older woman, alone, but had no problems even going on the side streets. (For younger women, it might be harder.)