Location is excellent, close to everything. There's someone reviewed with own photo somewhere else and it looked quite horrible and made us worried, turns out that such photo was very wrong, the room is actually really nice, warmly decorated, lots of space and sufficient for 3 adults and 2 kids without feeling tight, very clean, good layout with wonderful view over Montblanc from both balconies /both bedrooms and dining table, ok size TV, good wifi, lots of toys for kids, good 2 separate toilets and showers (not strong shower if used at the same time though otherwise excellent), good facilities for clothes washing and drying. Underground parking is also very convenient. Didn't use fireplace so can't comment, might be good during winter.
However, I feel check out by 11 or 12:00 and check in from 15:00 like most other places would be more reasonable than the current ones (check in between 17-21:00, check out before 10:00, anything differ needs extra payment).
Three minor things: no cutting board so we used a big plate instead, no coffee maker so we bought 1 cheap filter coffee maker (left it there), and 1 bedroom with balcony connecting to the neighbour is not very soundproof - we had no issue on the first week but our 2nd week neighbours seemed to love being at their balcony late at night to talk and listen to their music loudly so that's a bit annoying, we switched the bedroom among us so that the person who doesn't mind such noise would sleep there so case close. We could hear river stream but not much when closing all the windows and it's not very annoying noise anyway but prepare earplugs if you're sensitive to it.