Vincent's apartment was exactly what my partner and I were hoping for. It's spacious and very quiet, but still just a two blocks from the canal, and the rest of the shops and cafes of Canal St. Martin. It would be easy to spend days in this one neighborhood alone.
The apartment is a 3rd floor walk-up, but the climb isn't bad. Inside, there's a great 8-person dining table and a spacious, open layout kitchen/dining/living room area. The bedroom is also spacious and the bed is reasonably comfortable.
A few really nice bonuses here: There is a full bathtub which is great to soak in after a long day of walking on pavement and dancing at night. The second bonus is there is a nice sound system to play tunes on.
The apartment is also only about a 20 minute walk from Gare du Nord, so if you arrive by train, you might not even need to take the Metro or taxi to get here.
There are tons of great places in the immediate neighborhood. We visited Chez Prune, Holybelly, Du Pain et Des Idées, and Auberge Pyrenees Cevennes this time.
I'd definitely stay again next time we want to visit Canal St. Martin.