I received the Chosungah in Guava Jello (the translucent orange one) and I was pleased to find that I LOVE it. I swatched it on my hand first and it definitely leaves a nice tint with a bit of a staining effect (lasts around 4hrs). The shade is flattering with my skintone (neutral to yellow). I doubt I would have been as happy with the pink.
After the Jane Iredale last month, and then this one, I'm becoming a huge fan of these slightly staining, lip balm-type products. They pack a decent punch of color, last as long as a lipstick, but unlike lipsticks and gloss they don't leave a weird film on the lips as they wear off. I'd consider them sort of in between a tinted lip balm and a long-wearing lip stain: application is much easier than the latter, and granted they don't last as long, but patchiness/uneven application is a non-issue.
I've happy enough with its performance that I would heartily recommend the Jello variety of the Chosungah lipstick for anyone on the fence about purchasing. It doesn't have any taste though, not sure why it's marketed as "flavorful"