I spent 3 days in the Mar appartement on the second floor of a building with my friends, it was really nice I was really surprise of the location of the flat is really central and we had a car that we can park just few minutes by walk from the apartment. We did everything by walk from the flat to visit the central of Palma.
The flat is really nice and really clean.
The only thing is that they is a bell that ring every 15minutes from 8am in the morning that's a bit annoying but it's not a big deal and of course they is nothing to do.
But I highly recommend this flat for your trip in Palma I will definitely come back !