Overall, we had a great experience in Maria's apartment. It is well located and the surrounding looked very secure. 5 minutes from a train station so it wasn't too long of a walk with our baggages. About 15-25 minutes of walk of where everything happens.
Maria had a quick fix for all our needs.
Also, we were very happy with Maria's honesty about the tourist tax. I left money on the table when we left, thinking that I had to, and she gave it back.
Thanks again!