Bottom line: this is a wonderful apartment in a lovely area and the host is very nice. Highly recommended.
We arrived on a Sunday morning with unusually light traffic so we were early - but we messaged the hosts on the way from the airport and they kindly came straight away and let us in. The apartment is exactly like the photos, tastefully decorated with nice furniture. The bed and sofa were particularly comfortable. Everything worked perfectly and when we needed a little guidance on how to light the oven, the host responded immediately.
Colonia Napoles was perfect for us. It feels very safe and there are lots of good restaurants. We particularly like the Lebanese restaurant on Calle Kansas, Cantina 20 on Filadelfia and having breakfast in the street cafes on Georgia. Plus don't miss Bellini, the revolving restaurant on the top of the World Trade Center.
Oh, and the Walmart Express on Dakota, just two blocks away, is a great supermarket with everything you might need.