this has been one of the best Paris hotels I stayed so far. However, I think the price was also expensive (EUro 500plus) so if you do not mind the price, you will not end up being disappointed.
On another hand, I have also stayed in very close hotels that were 1/4 of the price of this one and the quality difference was not 4 times.
All in all, this is a nice hotel, but perhaps if you are willing to pay more than Euro500plus, then there could be other nice ones too. I can, the very least say that this one will not disappoint you, if you do not mind the price.