I've stayed two weeks in November in that gorgeous flat. Check in and handing over keys was super easy. Maria explained everything and I must say, everything was as advertised on here. The flat has everything you need either for a short stay or even for couple of weeks. The kitchen was very well equipped with utilities.
I think what I loved most, was the terrace, accessible from the living room or from the master bedroom. No better place to enjoy a coffee.
I reckon if you plan to stay in and around Palmanova you do not even need to rent a car. The flat is well situated, bars and restaurants are near and even Lidl is in walkable distance. And it is very close to the beach, too.
If you rent a car, please note that you cannot park on the property. But there's a public road behind the property and it seems to be the only road on Mallorca where I never ever had any problem with parking, regardless the time I attempted to park the car. Internet connectivity was great (260 Mbit/s down, 55 Mbit/s up).
Maria was very attentive and helpful which made the stay very enjoyable. I recommend!