Me and two friends stayed here for 5 days, we used both bedrooms and the sofa-bed.
Very comfortable, nice inviting place. Like many Paris apartments it is a 5th(?) floor with a very small elevator or walk up, but that's completely normal. Walk to everything.
We had some issues before getting there as we were surprised to learn we had to buy renters insurance (about $40 Euro), and we had to pay cash on location. We were worried this was a scam, but it was all legit.
If you don't mind paying cash, this place is great.