I didn't get to know Sandra and Carlos in person but communication was very easy. A very very nice lady from the neighborhood did the check-in. She didn't speak any english but everything went fine. The appartement itself is a nice place, very clean and well located regaring the proximity to tram station etc. Regarding the area itself my husband and I found it very dodgy. We didn't even stay a full 36 hours and police were coming twice with big vans of 7 policemen to arrest people. Also we were offered drugs several times. Wouldn't recommend for any single persons travelling and wouldn't consider coming back here.