This was certainly a very mixed experience for us at Guillaume's place. The Pros: the place is gigantic for Parisian standards. It is also located in a phenomenal spot near the Vavin Metro station and the Luxembourg Gardens. There are great food spots, a Carrefour, and most things you'll need. The Cons: First, know that there is no ability to store luggage at the property prior to appointed check-in time (resources for nearby paid luggage resources are provided). Then, the check-in process was needlessly confusing. I was sent details to use a lockbox accessed at a nearby bar but when the code I was given didn't work, I finally managed to call them. The staffer I spoke with (since it seems like it's actually run by a property management company) basically said that he didn't relay information to us and that they actually changed the plans. Someone was sent to the apartment to give us the key. When we finally arrived at the apartment, late from having to needlessly troubleshoot the key issue, the staff member acted annoyed, chastised me for being late, and then very quickly/brusquely toured the place. Then there was no printed information regarding the apartment or its environs. Even then, the wifi information (which I had to take a photo of from the staffer's phone screen) wouldn't work. Interestingly, the staffer even said that the wifi doesn't really work (well, having the correct network name and password would help). Only later after troubleshooting the wifi box did I discover that the name and password we were provided were completely wrong. There were also cleanliness issues: dirty dishes in the dishwasher, sticky bedroom floor, etc. Two of our beds were also slanted so the head was lower than the rest of the bed. Then, there was an unattached hinge on one of the kitchen cupboard doors so it almost hit my friend when we were trying to have some tea. Then, I was sent a message asking for over $30 to fix a kitchen cupboard door hinge (having done many home improvement projects myself, this is a complete over-charge even if we were at fault). Finally, the check-out lock box wouldn't work and they obviously hadn't worked out a back-up plan. Only after the barkeep's suggestion that she hold on to the key were we able to leave without missing our train out of Paris. Overall, there is plenty of potential for the apartment but there were plenty of management issues that tainted our experience. For these reasons, I am unlikely to recommend a stay here unless these issues are more worked out.