There are duds and gems, like any other product.
True, a guy has a hand...but that gets boring after a while and is only good for a quickie.
I love the Spider, but think I might've blown it out
Doc Johnson had a really good one I reviewed, but it was never picked up - a blue hour glass looking toy.
Some toys have been, well...not so useful. Feel free to check out some of my reviews for some ideas if you're looking.