I really liked the loft. It is very well located near Bastille. Easy access to metro and bus routes. I discovered Promenade Plantee within walking distance and there seemed to be many treasures like this nearby (great cafes, market etc).
It's a very spacious apartment (unusual for Paris). It's very comfortable and well appointed.
Be warned that there are 65 steps (it's on the top floor which is wonderful because there is a lot of natural light). This is only challenging on arrival and departure (with heavy bags). Once there it's no big deal and gives you a chance to work off the irresistable patisserie.
I appreciated the hosts who were quick to assist when I had questions. I was also grateful for their follow up when I absent-mindedly left something there.
It is not cheap but is worth it.