Very unique. Came from that era of RPGs where people were really trying to Innovate the systems, so it doesn't have levels, instead giving you small (eventually capped) stat boosts from enemies and giving you somewhat bigger ones from bosses. The "magic" not relying on an MP stat and instead having you outfit yourselves with spells that you can use once per battle is an interesting idea as well, one that I mostly like.
Still, the combat isn't perfect. The element types and field system can often cause battles to snowball, more often than not in a bad way when it comes to bosses. This is not helped by Revives being rare, as there's a good chance the character holding the revive can just be killed, forcing you to either give up the fight or sacrifice their level, which they can only get from the boss.
The plot feels... weird. There are themes of fighting fate and also a vague plot about environmentalism somewhere in there. Characters will spout off really philosophical dialogue at almost random moments, but there's not enough backing behind it for it to feel like anything more like a college student trying, and failing, to sound like they have deep thoughts. There is precisely 1 really cool scene, but it's not enough.
There's an insane amount of party members in this game, and from what I can tell, most of them have almost nothing to contribute to the plot. They barely even talk, let alone talk to each other. I'm assuming this feature was also experimental, and maybe you could get really into the whole comparing and contrasting them strategically thing for combat, but overall I would've preferred if this game just had a normal party made up of the party members that do feel important.
Also, the port sucks ass.