This thing is absolutely amazing. Use it over your fingers or your cock it doesn't really matter because the results are golden. It's flexible, yet snug, it's comfortable, it hits just the right spot for positions like missionary, but because you can turn it around, all it takes is for either you or the Mrs to press it to the clit (depends on whose got easier access) and you're in O-Town.
From a technical perspective, this thing is powerful. Turn it on and it will just progressively try and bounce out of your palm. Charge is about an hour for about 45 mins of solid use and abuse.
Stop reading this and just order one. It might be on the higher end of the price scale but the Mrs will be on board when you sent her into orbit multiple times.