The flat is in a great location: a very quiet street just moments from Rue Cler. It was very convenient for our family of four, albet quite small with the sofa bed opened. Check-in was smooth and communication with the company was very good.
On our first morning we discovered the shower drain was completely blocked; after a flurry of emails and texts the management company arranged for someone to come fix it that day. The problem was solved, but we were disappointed to come home to find the bathroom a bit of a mess: the shower handle off its hook, and all of the towels we used to mop up the mess were still on the floor in a bundle. We asked for replacement towels, were promised them twice, but never received any.
Outside of that, though, the place was great and we can recommend it as a good base in Paris.