the place is amazing, very clean, and has everything you need - including olive oil.
dishwasher and washing mashine go a long way too.
check in through the app is very smooth, make sure you have a phone with internet and your battery stays alive until you enter the apartment. great part is, you can't lose your keys, since access is via your smartphone.
communication with the host is great, they respond immediately.
the neighborhood is ok, at night Vallecas can get a bit sketchy though, so maybe take an uber after nightfall.