I really like the Twinkling H2Os. They are very shimmery, and the colors are lovely. They aren't like regular watercolors, though. I find them to be more opaque. I love Gelatos too. It really depends on the effect you're looking for. If you want shimmery, go for the H2Os.
I know we aren't supposed to talk about other places but check amazon if you are looking for gelatos....which I love! I play with them all the time.
I just ordered a bunch ( don't have them yet ) can't wait to get them and start playing! I don't know why I have taken a sudden interest in them, but all of a sudden, I had to have them! I've been doing lots of YouTube vids to get familiar with them. I don't do any type of mixed media or anything so not even sure how I will incorporate this into my LOs !