haven't tried it, because all research points to creatine monohydrate working, and not one single scientific research study has been done to show buffered creatines like EliteK, Kre-Alkalyn, work better/are more potent than monohydrate.
same goes for creatine ethyle ester, creatine citrate/malate. these are all just 'versions' of the same thing, but with a jacked up price because "hey, this isn't just monohydrate".
a few people who feel bloated on creatine monohydrate do seem to like CEE, but that's a very small minority of the population that have that side effect of bloating.