Stephane's apartment is in a beautiful location, right in the old historic part of Lyon. The apartment itself looks just like the photos and is really stunning. It's on the 5th floor without a lift, so anyone renting should be aware of this (it's perfect for 2 people without mobility issues). It's also a very lively area, with at least one of the restaurants staying open until around 4am. If you're sensitive to noise or are an early riser, this might not be the place for you.
It was a bit hot our first day in Lyon, so we were happy to have an air conditioner available. Just know, the air conditioner is portable, with a hose that needs to be placed through the windows. The difficulty with this setup is that only one room can be cooled at a time. Luckily, Lyon cooled down the second day, so we only used the air conditioner at night to cool the bedroom.
If you're thinking about visiting Lyon (and you really should!), Stephane's place is fantastic. I'd definitely book it again the next time I visit this beautiful city.