I stayed at both the Opera I and II. I had the Opera II booked for 3 nights and decided to add a day in Paris. The Opera II was already booked for the night but they were able to get me into Opera I for the additional night. I was able to drop bags prior to check in which was great. The next day my packed bags were moved from one room to the other by the cleaning crew. It was extremely convenient. Both places were as described and extremely clean. Kitchens were well stocked. Recommendations from Olivier and a dedicated concierge via WhatsApp made exploring Paris that easier and better.