I've never had the pleasure of being restrained and jerked off, so I don't know whether I'd enjoy it or not. But I think I would.
However, as I posted in a different thread, I recently attended a male-to-male spanking club for the first time that proved to be very stimulating. No, I wasn't restrained and jerked off. But I've been chatting with one of the organizers of the club and have been making plans for the next meeting which I hope to attend.
As I've expressed to him, my fantasy is to be strung up with my hands tied to a spreader bar above my head and a similar one between my feet. I would be progressively stripped until I was finally fully nude. While strung up like that, and basically helpless, I would be spanked, touched, fondled, groped, and yes most likely jerked off (and maybe sucked off) by one or more guys. The spanking and edging would alternate back and forth for as long as I could take it before I'd finally shoot my load -- either hands-free all over the floor, or in someone's hand, or perhaps in their mouth.
That's my fantasy and he has assured me that it's quite possible to make it a reality, as similar things have been done before. So in a few weeks, if I'm brave enough to go through with it, I'll have some dramatic new experiences.