I have spent years going to Mallorca in August and always stay at the Mardavall. Other than La Residencia it is the best hotel on the island. The spa is amazing and they have a deal with transfer rent where you can rent luxury cars. We rented a porsche on one visit and a mercedes on another. Also, if you rent a certain car, they provide complimentary airport transfer, which happens to be in a Rolls Royce.