For 2 years in a row they have done something wrong while winterizing my kawasaki jetski. First year they damaged the battery on/off switch this last year they put pink antifreeze in the wrong area which caused it to get sucked into the motor. Full disclosure, I have had no isues with my pontoon so I guess that would be my recommendation "boat only". My biggest issue is that when it was brought up to them both years we got the same response "we'd never". Like someone unwrapped it, filled it with 1/2 a gallon of antifreeze and rewrapped it.