My wife and I (mid-50's couple from Australia) stayed in a studio at Masna 5. The building was secure, quiet and well located. Our apartment faced a rather bleak internal courtyard, but thaty may have helped with it being quiet. Some friends were in a street facing apartment, and it had wonderful light and a view of the nearby church spires. They also had no problem with any noise.

The apartment had good facilities and good wifi (floor 2). The bed was a bit small (and we are average size), and sagged a bit. A few days is not a problem, but more than that might be uncomfortable.

Be aware that this is one of several buildings managed by one company. The company and its reservation, booking systems were excellent. The checkin location may be a kilometre or so from your actual apartment. Keep this in mind when arranging transport. I believe they offer transport services, but we had no direct experience of it.

We enjoyed our stay at Masna 5.