Stayed here with my two brothers for three nights in November 2017.
The apartment is in a great location - it’s quiet and residential but very close to some restaurants, bars and a huge shopping centre. All of these are easily walkable. The lovely district of Mala Strana isn’t far and it’s an easy walk, though it’s just as convenient to hop on the tram. Old Town is about a 25 minute walk from the apartment, which is fine for me as I like to walk, but again it’s also very convenient on the tram. On Saturdays, there’s a farmers market near Vysehrad; this can be walked to in just a few minutes.
The apartment itself is nice, with two bedrooms (one with a bed and sofa bed) and a futon in the living room, so there are plenty of options for sleeping arrangements. Everything was clean, some essentials were provided, and the shower is nice and powerful. Oh, and there’s wifi. It’s on the fourth floor and there’s no lift, so not suitable for people with mobility issues, though this is clear in the listing and reiterated by the owner upon booking.
Speaking of communication, it was excellent throughout. We didn’t meet Peter (there’s an unattended key pickup option for late arrivals) but his communication throughout was great.
All in all, a trouble-free stay and a recommend base to explore Prague.