We (7 adults) stayed at Emanuelles place for 3 nights. There was enough space for everyone and sleeping in the kids room and on the sofa bed was no problem at all. The appartment is charming, especially with its private garden which we enjoyed very much. The view is amazing!
Access with luggage is a bit tricky, you might want to take a taxi and use the upper entrance. But to discover the city you can take another exit (about 150 stairs down) directly in to the old town of Lyon. It's quite an adventure to - we loved it! The neighbourhood is lovely, there are good restaurants and shops close. Emmanuelle was also very helpful and made some good recommendations - thanks for everything!