The number one pro of going with Gustavo is Gustavo himself. He's very responsive (responds to most messages within minutes of getting them) and provides any tips/information he can. The place itself is nice and well-stocked with potable water and tea. Only issue of any real note is that, as in many places in many major cities, the neighborhood can be a bit loud at night. Lots of dogs barking. So bring ear plugs and have a good time!