We were a family of 6 (2 couples and 2 young kids) and this was a really great apartment for our stay. It's bigger than it looks in the pictures and it's very well located, less than a 10mins walk to the Piramide metro/train station. You have supermarkets, restaurants, coffee shops all nearby (some of them right at your door). Roberto was very helpful answering quickly our messages and the check-in process went smoothly. I guess if you're staying at this apartment with a big family (like we did) you need to be ready for some logistics schedule when it comes to make use of the bathroom but that's really a small detail.
All in all, Roberto's apartment is really great value and I'd have no problems staying here again.