I had a great stay at the Hotel Kleber. There are about 1000 Klebers so if you find the one I stayed at (have to dig through old travel info for the exact street) the staff is very friendly (unlike many of the people you meet on the street). I stayed a few days and I would definately go back (if I could find it again...lol I have the business card:)
The Metro was only a few minutes away and I loved Frances metro!! In Germany it is a bit more expensive and the cabs rob you, Paris I remember I went from one side of the town to the other for only about 8 euro.