pros: Good Vibrations, easy to use, gets the job done. works good in conjuction with other toys. Cons: The little egg that vibrates does not have replaceable batteries, so you get less than a hour of fun and no more good vibrations. other Thoughts: it would very cool if you could replace the little vibrating egg with something external or buy the little eggs by the dozen. More thoughts: works better with a rubbing action as to pounding. try it with women on top so she can control it better without beating up "the little man in the boat".