Overall, the apartment was just as advertised. It is in a perfect location. You can walk to most of the sights within 20 minutes. It is a lively and safe neighborhood. Grocery stores and, most important, several pastry shops are within a block or two. Lots of cafes as well.
The only suggestion I would make is that there are no numbers or identifying marks on the door of the apartment. When we arrived for the first time, the keys were in the lockbox exactly as described, but we had no way of knowing which of the doors in the building were ours. We ended up trying most of them before finding which one opened for us.
Overall our family of 5 really enjoyed staying there.