The skill descriptions are hilarious and I love it. The music is pretty good too.
I like the idea of changing classes, although a couple of the classes (thief/priestess) don't seem very good. The few times I tried to steal with thief, the enemy had nothing to steal. As for priestess, she has a couple of redundant skills; I see no reason to use Cure/Cura when Prayer/Vigor does the same thing without the MP cost. Also, personally I felt idol was superior; it has got a HP buff which also heals, aoe versions of the same P.DEF / M.DEF buffs that priestess has, as well as a couple of other useful buffs, and can even recover the party's MP. I suppose priestess does have reflect/ensuna/revive/dispel, but the couple of times I tried reflect/dispel at the hydra it didn't work, and I never saw any use for ensuna/revive. I eventually found myself using 1 idol and 2 mages for most of the game.
The part where you gotta lose several times was really annoying. First time, it took me a while to figure it was a scripted loss, so kinda my fault that it dragged on because I was trying to survive with thief's lifesteal and warrior's debuffs. Subsequent times, however, even trying to die felt slow, as the boss would sometimes heal instead of attacking. I get that it's for story reasons, but like, 5 or so times is a bit too much. 2 or 3 would've been enough, imo.
Despite all its flaws, I enjoyed it for the most part, and was quite impressed. Overall, pretty great game.