So I've stayed here for 2 nights. Check-in is easy.The location/neighbourhood in Paris might make you feel unsafe if it is dark outside. The apartment is pretty stylish and nice,but pretty small. But that doesn't really matter as you have pretty much everything you need and it's not like you are going to stay home a lot while travelling in Paris. There was a bit of dust on the furniture but other than that it was alright.
I'm rating it 4 stars just because of the location.
P. S:The guy is very nice and will help you with all your question. I recommend him.