I have no problem with spiders, my mojave spider only ever has wobble when he smells a rat and even then it only takes him an extra strike to hit the rat.
My boys never wobbled when held, but that may not be the case for all spiders so as long as you understand this and are willing to work with snakes that may have more severe wobble then go for it, they look great!
It almost gives them a bit more personality than my other pet rocks