Pretty accurate, but keep in mind the price you are paying. It is a little rustic so prepare for that.
Also, I knew from before, but to make it absolutely clear, be prepared to go 4 floors up with your suitcase in a very narrow corridor/stairs. Not for everyone.
Very well located (8-9 min by foot from the SMN station). If you need to store your luggage after the checkout, there are a couple of places nearby at a good rate (look for Vaise Florence, if you are interested).
Please consider that it is a gas kitchen, so maybe it would be a good idea so have some matches in hand.