Great for sleep and pretty cheap..not a waste to imo!!
ZMA is a good formula providing absorpable forms of zinc and magnesium.
It's unfortunate the way they hyped the initial marketing of it as a super-duper test booster. I think that gave buyers unrealistic expectations leaving them disappointed after trying it.
Maybe a better description is "recovery aid."
Anything that improves sleep architecture can fall into that category, and the ingredients in ZMA go a bit beyond that.
Unfortunately, "aids recovery" isn't quite as sexy a marketing claim as "testosterone booster" under a picture of a contest-ready IFBB pro.