We absolutely loved this apartment. It is bright, spacious, and airy, and we never tired of the view. Your cheerful hosts, Anthony, his wife Sandra, and their lovely and charming daughter Emily (who is like having your personal concierge) couldn't have been better. They helped us with everything we needed during our stay, including arranging for a taxi for our 5:00 AM departure.
The kitchen is very well supplied with everything you could want - even a multitude of covered containers for storing your cut fruit, leftovers, and anything else you have.
The beds (all three) are very comfortable. The two main bedrooms are large and well-appointed, with plenty of storage for your things. The third is a few steps away from the door which leads up to the lovely roof terrace and covered outdoor patio, where you can sip a cold beer and enjoy the view.
When you're in Oaxaca, you are definitely going to want to be venturing out! This city is alive with culture and celebration, especially on the weekends. The church of Santo Domingo de Guzman, and the Zocalo downtown, were both a 20-minute walk by different routes for my wife and I (both in our mid to late 70's); younger folks will make it in less time than that.
One word of caution - this is a penthouse, and that means steps, lots of them. If steps are a problem for you, this is probably not the place you want. Otherwise, it can't be beat!