I've used it a couple of times and liked it well enough. I've always used the punch and don't mix it with as much water as they suggest or drink it when they suggest either. I always just mix it in 6-8oz of water at most, and throw it back quick after my workout. Can not sip it during personally. Also, to be honest I do believe there are better creatine products out there as a whole. As far as Size On goes... not bad, but bulk Creatine Mono and Creatine Gluco would be cheaper and just as effective.
I'm actually looking to try Trinitine from Omega Sports here shortly.