We really enjoyed our stay at this apartment. The location is great: walkable to Louvre, Seine River, the Opera; 2 nearby metro stations; close to shopping and lots of nice restaurants.
The host is very responsive. We had an issue with the shower. He arranged for a plumber to come by the very next day to fix the issue. He stopped by afterwards to make sure everything was ok.
This was our first experience with staying at an apartment in an European city. We had previously stayed in hotels. So there are a few things that we would like to point out similar newbies to be aware of: stairs are narrow and steep and there is no elevator. Fortunately, we did not have a lot of luggage to carry up and down. Bathroom arrangement is a bit unsual: there is a bath attached to the bedroom which has the shower and a sink but no toilet. There is another bathroom by the kitchen/hallway which has the toilet but no sink. So, after doing your business, you end up washing your hands at the kitchen sink. This may be how things are in small apartments in European cities. We just found it a bit odd.
None which detracted from our experience. We would still highly recommend staying here: great location, wonderful host, great value for the money.