Axel's place was centrally located and right next to public transportation. We were able to walk to several cute neighborhoods and good restaurants. It was a great location to explore Paris!
Only 2 drawbacks- the stairs and plumbing. Axel states the flat is on the 5th floor with no lift, so it was no surprise. It's just a bit more of a mission once you're actually there. They are totally doable and still worth it, but something to consider. Also, the toilet can't handle toilet paper so you can't throw any in there. It's hard to remember!