I mean... complete honesty, if you're looking for something on a 3ds I really can't recommend anything kemco unless it's real damn cheap and you're cash starved. They make solid-ish but thoroughly mediocre jrpgs (and both cryst and soe are veeeerry much mediocre), and bunches of 'em, but basically none of them are particularly good, just possessing an occasional good part. They're decent enough to mostly not be outright shovelware but there's totally better stuff on pretty much any platform they sell on. Don't really expect much out of it, basically.
Though now that I'm awake enough to read straight, "burned through everything else" is an okay reason to be sifting through kemco games, heh. Also it's apparently too late, ahaha. Anyway, my kemco heuristic basically boils down to "is it in a humble bundle", heh. Generally not something I'd consider worth the price otherwise (even when the price is like .99 USD).
... that said, yeah, I've apparently played eternity*. Not sure I'd call it one of their best (its one of their more sparse/old ones, so it's more mid/early generic SNES jrpg and less mid/late generic SNES jrpg), but it's probably at least one of their middle-ish tier ones. Kinda' hard to say, really. I've played a good number of kemco games so far but there's kinda' a shitton of kemco games, so there's plenty I haven't played. Pretty sure there's another one related to that one (sequel or prequel or something; the robots are in both) that I liked more. Combat system was manaless, game itself was a bit prettier and smoother gameplay/progression wise, etc. Can't remember which it is off the top of my head, though.
*Not eternia, mind, as as near as I can tell kemco has nothing with that exact name. Closest that exists is tales of eternia, and the tales of line of games is something very, very different.