A very good host and a lovely flat that is ideal for exploring Lyon on foot or by public transport. Be aware, however, that the two bedrooms do not have independent access to fresh air - one is a loft with limited headroom; the other is at the back of the lounge and is enclosed. This would be fine in most seasons, but in very hot weather, it gets very hot in both bedrooms, even with fans. The flat is on quite a busy road, so leaving the lounge windows open is not an option for sleeping.
I would thoroughly recommend Guillaume's flat - just be prepared for sweaty nights in the summer!