I really, really wish I could give this apartment five stars. So many aspects were perfect for us - the unit is virtually child-proof, is in a quaint part of the city (the corner has actually been featured in travel articles), we felt like locals and the apartment is comfortable.
However, we had no working stove during our two-week stay. It's my understanding that the owner was aware that a prior tenant had broken the stove, and you can see in an earlier review that someone else had problems with the oven. Luckily, my husband was on a business trip so we were able to expense his meals, but we ended up eating out and spending much more than we'd originally planned. We also ate a lot of microwaved food. It's only cosmetic, but the front cover of the dishwasher was splitting from the machine.
If it wasn't for the stove, I would highly recommend this unit. If there's a way you can verify that the appliances work, it's a great place to stay. They even provide a pack n play and bath toys for babies. A hair dryer is also provided.
Just a note: Monmartre is a very hilly area with lots of relatively steep inclines and outdoor stairs. I wouldn't recommend this area if you have mobility issues.