This place is great. It is very walkable to everything you will want to see in the city. It is one block off from main streets and easy to get to. I believe there is a bar across the street. This didn't affect us at all other than seeing some people hanging out on the block when we returned home one evening but everything was quiet and we never had any problems or felt uncomfortable. If you will have a car, I recommend having Enrique walk you to where you should park since there are many places with differing prices and they can be hard to find while driving if you are not familiar with the area.
The apartment was clean and nice, prefect for a couple on vacation. One note, don't try to run the washing machine and the air conditioner at the same time as I tripped a breaker while we were there.
Enrique was a great host with just the right amount of communication to help us feel good about our choice and make the most of our visit.