This is a GREAT neighborhood. Absolute treat with artisan bakeries, restaurants aplenty (we recommend walking up to the Butte and checking out all the bars and restaurants. We ate at Le Tempes des Cerises and LOVED it).
The apartment is absolutely okay. It's as clean as it's going to get. A converted garage, it was perfectly adequate for the two of us, though the second guest bed is quite small. If you're not picky, it works. The garden was a nice bonus. It would have been nice if it had been swept up and tidied. Going in and out makes you feel guilty for tracking in all the leaves and dirt.
The kitchen was an issue: moths and a very rank mildew stink smacked us in the face when we walked in. We spent no time in there except to make coffee and to leave the place. Retreating to the two bedrooms and garden was a relief. Bring mosquito protection, though. You're going to have to leave the windows open at night in the summer if you want air circulating through.
The bathroom was quirky and fun. I found it pretty ingenious actually.
Absolutely okay apartment. And truly, the arrondissement was a gem. Safe, quiet, and full of neat finds. Convenient to travel to other parts of Paris as well.