The place is very convenient and it is located in a nice neighbiorhood. You can take buses or go to the subway station to get everywhere.
Although you have to share the bathroom & the shower with the other guests, I never had a problem with that because there are 2 of them and at least one is empty.
If you are coming back by night, I highly recommend that you take a taxi or Uber instead of using the subway: the walking distance from the station to the house is around 20 minutes and there are some areas where the streets are dark and empty.
Mónica and her mom are really nice and welcoming people who make you feel very comfortable since the moment you arrive.