Nice, quiet apartment with balcony that is right in the center of Prague (at most 5 minutes from Wenceslas Square), but thankfully not in the most crowded/touristy part.
The apartment is nicely renovated and equipped with things I wouldn't normally expect at an Airbnb, e.g. a washing machine and espresso maker. While we rented the apartment for two people (not a couple), there are two separate bedrooms so it would also be suitable for a family of three or four.
At first, when we arrived at the address we saw construction work going on in a neighbouring building and were a bit worried whether it would be noisy, but actually the apartment faces a different street and one could not hear any construction noise inside!
Alex and Elena were great hosts; Elena met us at the apartment when we checked in and invested a lot of time in giving us recommendations for things to see in Prague, restaurants etc. We were even sent a list of places they recommend. They also left us some coffee, cereal etc. for breakfast at the apartment which was a nice touch.