Highly recommended. A modern, clean apartment within a charming older building. The aesthetic is minimalist and spare without being cold; it feels very much like a space designed to be rented as opposed to someone's house. Located at the back of the building, the apartment is perched amongst others facing the interior of the block--the kitchen especially has a nice view. It is entirely isolated from street noise and gets nice light. Two notes: 1. If mobility is a concern, the apt is on the fifth floor but the elevator only goes to the third. 2. There is virtually nothing there in terms of condiments; there's a washing machine but no detergent (though we left what we bought there so you may be in luck); there was a small bar of soap, but no shampoo or the like, so pack/shop accordingly.
As much as we liked the apartment, the best feature is the neighborhood. It's fabulous--close enough to more or less everything (if you include public transit), but in an actual community as opposed to a tourist district. Tons of local eateries and fresh produce and fruit shops, along with bars, a couple comedy clubs, and the like. The neighborhood houses a significant middle eastern community, reflected in many restaurants and stores (e.g. curious about Kurdish pizza? You can slake that appetite here.).
Sébastien & Élise were readily available before and during, always responsive and helpful. As above, an enthusiastic recommendation.