For our tour to Mitteleurope, we chose Alex and Natalia’s apartment. The apartment is very close to the metro, no more than 150 m from the metro exit I. P. Pavlova (just exit with the elevator for disabled and strollers if you have luggage).
The apartment is clean enough, quiet and contains almost everything you need in the kitchen and bathroom. The positive point is that there’s the reception just in front of the apartment, so we could leave there the luggage in the morning and pick up the keys and go around for Prague until the apartment was ready for the check in (and the same thing for the check out); moreover, I think that Alex and Natalia live in the same building or pretty close because when we had a problem with the boiler, they just arrived in 30’’.
I just would suggest to leave some amenities for your hosts, as salt, oil, coffee and tea because it’s easier if you stay for just few days not to buy everything.
Anyway I would absolutely recommend this place for your stay in Prague.