This is a lovely apartment, with views of Paris out of the front and back windows. The views are particularly lovely at night, when you can see the Eifell Tower from the front balcony. Happily, the apartment building also has a lift (which can be a rarity in Paris, as many of the beautiful buildings are so old), so access was painless.
It's in a great location. Situated on Canal St Martin, within walking distance of lots of restaurants and shops (including some great vintage clothes shops), and five minutes walk from Republique metro, which will get you to lots of places easily.
My only flag (which I have mentioned to Angele) is to just be aware that the clothes wardrobe in in the second bedroom only has shelves, so there isn't anywhere to hang dresses, shirts/blouses, trousers, etc... So either be prepared to share the wardrobe with the people on the main bedroom, or pack your suitcase accordingly, so that you don't take things that will crease easily, especially if you're planning some nice nights out/have business meetings, etc. It's a relatively small thing, but better to know in advance and be prepared, so it isn't frustrating later.
Frustratingly, while we were staying, there was some teeth-chattering, bone-shaking building work going on in the adjacent apartments, which started at 7am and continued throughout the day. So, this did spoil our relaxation and any chance of a much-hoped for lie-in. However, when I complained, I was given a small discount, which was appreciated.
But it is a lovely flat and the owner has a couple of great people managing it for her. I stayed there with my mother and overall we both had a lovely Paris weekend.