MaryJo's place is exactly as advertised. It's a small apartment and it has all the necessary appliances. My partner and I stayed there for a month and we absolutely loved it. It is close to public transit, restaurants, cafes, a really nice park, a mercado, and a public library. It was so nice enjoying the neighborhood as soon as we stepped out the building.
It was very easy to communicate with Mary Jo and her parents, who were the ones who checked us in and out (Mary Jo was not actually in the city). We had a small problem with the internet/cable and they fixed it right away. We also asked for a comal to heat up tortillas and, again, they brought it right away.
It was nice, comfortable, safe, and convenient to stay at MaryJo's. We would love to stay there again in our next trip!