We had an extended stay in Paris (a month) and stayed at Gilles' place. As far as location in Paris goes, you simply cannot do better than here. The Marais district is where you want to stay, and this apartment was a mere 5-minute walk to the Metro station. This building has an elevator (a must for a 4th or 5th floor unit) and a decent size bed (queen). The host is responsive. When we had an issue with the remote control (I simply don't know how we disassociated it from the cable box), they resolved it the following morning.