My wife and I spent 3 nights at the Hotel George Sand in June. I have been to Paris numerous times and always try to stay around l'Opera. We looked at the hundreds of boutique hotels in the area and finally decided on the GS and were very happy with the decision.
The rooms were larger than I was expecting, and very well equipped. The bathroom was also quite large. We had a room on the second floor overlooking the street and never had any problems with noise. At 158 euros per night in June, I found the hotel a good value.
Location wise, it was perfect. The Louvre is only about a 15 minute walk (Arc de Triumph was about 25 minutes) and by metro the hotel is situated about half way between the Eiffel Tour and Montmartre.
A recommendation in getting to the hotel from the airport... to save some time, you can take the RER in from Charles de Gaulle to Gare du Nord for 8 euro per person. Then change to the metro from there or catch a cab depending on how much luggage you have and how brave / strong you are (remembering that there are a lot of stairs in the Paris metro which makes it difficult with luggage).
Overall, a great hotel in a great location. Would definitely stay there again.
