We stayed at the Hotel Crystal in St Germain a couple of years ago and it was pretty decent. It's about a minute from the metro and in a very upmarket area with lots of cafe's. For Paris, we got a good rate for the place so worth taking a look at! We adults + our youngest daughter had a really nice room on the 1st floor that had been recently renovated, our teenage daughters had an older less smart room further up so if it's of interest, ask for a renovated room. I'd stay again, great location and reasonable price!