Very close location to the Eiffel Tower. Walkable distance to bus stops, RER and metro stops.
The unit is on the ground floor so there is quite a lot of foot traffic. The neighbors who share a wall are VERY noisy so do bring ear plugs. They can stay up late and wake up early.
The "butler" was helpful and provided a few tips like buying a weekly public transit pass.
The hot water would be limited but if you want the heater above the toilet, you can adjust how much hot water can be heated so that doesn't become a problem. We didn't learn about it until the last day.
The bathroom did have a slight sewer smell but it never wafted into the bedroom so it wasn't an issue.
Would stay here again but would definitely bring ear plugs again!