A fantastic stay for the price. We chose Colonia Sant Pere as our basis for exploring Mallorca for a few reasons: it gives as cosy access to the less travelled places in Mallorca (like the national park and beautiful beaches in northeast of the island) as well as the taste of the more crowded parts of the island (Alcudia, Muro, Can Picafort) or the beautiful old town of Arta. Frankly speaking the island itself is in the handy enough size, that you are hard pressed to find any place to travel there that takes you longer than a hour in a car.
About the house - original listing description does not honour the house enough. It's a stone house, you get 2 floors (3 if you count roof terrace as a floor), you get bathtub, you get 2 toilets (first and second floor). You get quiet neighbours, air conditioned sleeping rooms (both having large double bed) and a terrace on the first floor with a mountain view, that is very good for late dinners with the family. All the promised amenities are there and more. On top of the amenities listed, you get a toaster and an electric lemon press - use that one to make orange juice from the fresh local oranges. House is clean and well maintained.
Overall our stay in Mallorca was fantastic and no small part of it was played by the house we stayed in. Also Thorsten was very helpful in sorting out all the issues we had rather fast.
On suggestion NOT related to the house - if you rent a car in Mallorca, prefer smaller ones. We got Hyunday Tucson from dollar rent and that is a wide SUV which handles like a boat (this torture they called an "upgrade"). You're happier behind the wheel of a smaller car like Renault Clio or something in that class. Especially some mountain roads (Ma-10, road to Sa Colobra/Torrent de Pareis and road to Ermita de Betlem) are rather narrow. The last one listed is so narrow in some places, that only motorcycles can pass each other or, that in case of cars meeting there one or another driver shall back up. Long story short - SUV is not suitable for the island.