We are a family of 4 and at the time of our stay (early July 2019) our kids were 14 and 16. It was our first visit to Lyon and won't be the last. A friend had recommended the Vieux Lyon neighborhood and this flat, we believe, was a stunning representation of the area. From the heavy door on the pedestrian-only cobble-stoned street, through the corridor and up a winding staircase (or elevator) the flat opened up to the tallest ceilings in an apartment I think I've ever seen. Also with its modern touches the medieval contrasted with the modern was simply beautiful.
So would we recommend the apartment? Yes!
Why? Location-wise, it is steps away from a train station which made it easy for wayfinding and telling taxi drivers where to go. It is also very close to a bus line to/from Part Dieu. But for walking, it is fantastic. In just a few short minutes you can walk through the heart of this, the oldest part of Lyon. You can walk up the "Pilgrim's Path" to the basilica on the top of the hill and over to the Roman amphitheater. You can walk easily down to the river front or across one of many nearby bridges toward Place Bellecour.
We were met upon arrival and given a tour and explanation of various things, e.g. wifi setting, local eating, public transport, etc. We really felt like we were staying in someone's home and so it felt cosy, cared-for and homey.
We will be back to Lyon again and will definitely check on availability next time.