Just watched it.
I thought the movie had real promise, choosing youth over your aging self, there had to to be consequences and the deterioration of the original body was a good idea.
The ending ruined it, i don't like over the top splatter gore, the realistic aging makeup effects were great early on then we got a creature plucked out of the 70s movies like they'd run out of money.
Good start, though not perfect completely ruined with stupidity.
If you like gore, you will love the ending.