Casa Mistral is a truly beautiful and lovely place for your Mallorcan group vacation. The house has gorgeous views of the sea and mountains, with plentiful outdoor spots to enjoy sunset and the gorgeous colors. Isabel is a really wonderful and accommodating host, and was always there to answer our many questions. She helped to arrange a private chef paella night with Loren, which was super delightful. The kitchen is also well-equipped and there's a charcoal grill, which was very helpful and nice for when we wanted to cook. We also really enjoyed the nearby Es Port restaurant, located just a three minute walk down the hill to the lovely and quaint Port de Valldemossa (which is also has a small pebbled and seagrass beach, which is nice for a quick dip).
Things to note - the road leading up the house is a narrow and winding road with lots of hairpin turns about 15 mins from Valldemossa. It's definitely manageable (and even fun) for experienced drivers, but for new or less secure drivers it could be intimidating.