I stayed in Valentina's house with my wife and two kids. There was absolutely nothing we would change in the house. There are all amenities you could imagine including children's stuff for the beach, baby carrier and so on. The house was very clean!
Valentina and her husband Luigi did everything to make us feel at home. Communication was excellent. They gave us lots of local tips. Where to buy food, what's the best spot on the huge beach and many others.
I would definitely recommend Valentina's house to anyone visiting northeast coast of Mallorca.