i know of some players who have beaten it, yes, though I'll let others speak for themselves.
the baths are altogether unforgivingly designed--this is a complaint i get a lot and i absolutely get where it's coming from. i tinkered around with them to make them somewhat easier for the final release than they were during the demo, but there are very few changes i could make that i felt didn't compromise the integrity of the puzzle and moreover the entire level.
that being said, i understand they're frustrating. i know of many players who bounce off of them and therefore don't finish the game. i'm not sure what to do about that--i stand by my design, but i empathize with anyone who finds it overly punishing or tedious.
if you decide to continue with them, i wish you the best. i recommend you gather at the hub and save each time you get a skull, if you're worried about dying and being set back.
i'm willing to offer more tips, too, if you'd like some. or if you have questions.