Charles was a wonderful host and his apartment was perfect for a stay in Paris! My wife, our 1 year old daughter, and two of our (adult) friends stayed three nights and had a fantastic time. Charles met us at the apartment (he speaks English for those of you who, like me, haven't dusted off your French in a while :)) and gave us a very detailed tour right off the bat that was super helpful. He answered all of our questions and gave us some recommendations for things to see/do around the neighborhood (Grenelle), and he was super responsive with communication throughout the trip and really flexible with our crazy schedule. He even came back our last night with a bottle of wine (and some pretzels) because he'd forgotten to leave one for us :)
The apartment itself is exactly as pictured, complete with a beautiful balcony that has motorized shades (which came in handy with the baby's sleep schedule) and awning. It also has all the amenities that you might need--a comfy bed with nice linens, a huge sofa bed with mattress pads, linens and pillows, nice big towels, showering supplies, an espresso machine complete with coffee, the kitchen is fully stocked with dishes/glassware/mugs/silverware, etc. and he even had some food in the pantry and fridge for us! The TV was great with all the channels you could ask for and Netflix to sign in to if you want to catch something not in French :) He even had a little toy car that our daughter enjoyed playing with. It's a really wonderful place to wake up and spend your time when you're not out and about in Paris.
Speaking of, the neighborhood is really great as well. Close walks to public transit and very close to the Eiffel Tower. There's a really awesome boulangerie (Maeder--c'est magnifique!) right down the street and some really fun bars and restaurants (we'd recommend Plan B for a drink and I can't remember the restaurant names but they were good!). It's a fun area of town with nice locals and some international schools, so parks and such for kids too! We had a great time in Paris and it's certainly nice to have a place like that to call your home away from home!