Our apartment at Residence Masná was absolutely perfect. I couldn't expect a better accommodation in Prague.
The location is excellent, not only because Staré Město is close to everything worth visiting, but also because Masná is a rather quiet street, which is not always the case in other tourist-laden parts of the Old City. Our apartment was well equipped and impeccably clean. It combined the amenities of a hotel, like the much appreciated daily housekeeping, with the comfort of a private house. The wireless connection wasn't very fast, but it was more than decent and always operational. The only minor annoyance with the apartment was the shower handset that should have needed some maintenance, but it was quite irrelevant.
It must be noted that the studio shown in the photos and in the map is just one of the apartments of Residence Masná, so you may be accommodated in a slightly different one, but there are no significant differences in the equipment and furniture of the various studio apartments, even if their arrangement may differ.
It should also be noted that Residence Masná is managed by a company whose office is located 1.2 km away – a 15-minute walk. The good news is that the office is available 24/7 and the staff is exquisitely kind and helpful. The employee who attended to us at the check-in even spoke an excellent Italian!
Should anyone ask me for advice about an accommodation in Prague, I would definitely recommend this place without hesitation.