We had great stay at Maritza's apartment. It is right in the middle of town, close to all the best local restaurants and street food. It is also walking distance to Cahal Pech, the Iguana sanctuary, the market and the AJAW chocolate tour.
The apartment itself if just as advertised and at the price point I would say it is a bargain. It has a small living area but the bedrooms are a good size so there is plenty of total room.