The good news is that the light RPG elements are actually pretty entertaining and kept me playing for a few hours. There isn't a ton of depth to them, but they're thought out well enough to give some focus and direction to what you're doing on the puzzle side of the game and break it up a bit. The story is nothing to write home about, but it moves the game along.
I might've kept playing it on and off despite some annoyances (e.g. fighting multiple enemies at once that spam status effects effectively forcing you down an upgrade path that gives you an easy way to clear things like blind/poison), but my inability to see what was going on really started to get in the way after a while. This is one of the few games where my partial color blindness has been a significant problem (especially with the blue/purple gems), and it could've been avoided without even adding a color blind mode. Just making the different gems different shapes would've made an enormous difference. It also really, really doesn't help that things like the poison symbol cover up most of the colored area of the gems, which makes it a lot harder at a glance to tell what you need to match them with to clear them.