My husband and I had a wonderful stay at Marc's beautiful apartment in the Marais. The apartment was exactly as pictured: large, well-appointed with comfortable furniture and kitchen essentials, and very clean. The terrace was larger than I expected and a wonderful place to eat breakfast or enjoy a glass of wine. We did not need the air-conditioning as it was quite cool during our stay, but it was nice having it just in case! The wifi was strong and reliable. We found the location to be ideal - on a safe and quiet street but within a few minutes' walk of plenty of bars, restaurants, and shops. Very conveniently located between two Metro stops as well.
Communication was very good - Mark was very responsive by text and email. While he was out of town during our stay, he arranged to have a friend meet us for check-in and accommodated our early morning flight arrival by letting us drop our bags early. We had a great time and would definitely stay here the next time we're in Paris!