"This set was a very satisfying build, it was quite challenging but not extremely difficult which I enjoyed. I would say that the recommended age is acceptable because I had my little brother help me and he managed it fine. The play features are excellent including basic touches that my little brother really enjoys like spinning the propellers and having a couple of little boats to enjoy to. Overall I would rate this set a 9/10 and I recommend this to anyone buying a gift for a friend, a child or themselves."