I'm useing Decavol now, along with the rest of the stack.
I have only been on it for 3 days, so I can't give much feedback at this time.
I can say I did alot of research as far as finding the right stack. I also read alot of reviews on this board as well as others and found this to be one of the best stacks out there. (In my opinion)
So far no sides to report.
I take 4 caps of Decavol a day.
Hope this helps.