The flat is in a very useful location for all kinds of transport, including to/from the airport at any hour, and especially if you're planning day trips to elsewhere in Chile. Easy reach to the city centre and also the neighbourhood itself has many non-touristy local street markets and malls around.
The room has an awesome view, I definitely suggest waking up early to watch the sunrise over Santiago. There's also the private bathroom just outside your room. Thank you very much again!