Adding on to what the guy below me said (I made it through to the 2nd prestige, despite my action bar sometimes freezing and getting me killed), there is also a glitch with stats. I was nearing the end of my 2nd run (had about 14000 health), and despite the enemies being able to do like 4000-6000 with specials I would normally be ok because I could two shot enemies with a combo and then earthquake spam. I then noticed that when Ihat my damage was getting a whole lot weaker. I'm not sure if it was the stacking of armor/weapon break (I did use the repair abilities) or the fact he kept charging over and over, but now my attacks hardly even damage that enemy. This applies when I die and retry the battle too, so I'm basically stuck at a near invincible enemy.
Other glitches: Some skills seem vastly superior to others. For example, rockslide is a godlke move that does HUGE amounts of damage. Tack that on with frenzy that increases your speed (dont think it increases strength like it says, but the speed increase is a huge help) and you have a near unstoppable hero as long as annoying glitches stay out of your way. Phoenix strike did about the same amount of damage, and it costs a huge 300 mana more, and doesn't even give a status ailment like rockslide. I also felt that limit break 3 was a bit underpowered for when you get it. My rockslide does more than my supposed ultimate attack that I can only use occasionally. Another bug is I don't think crafted weapons give the status effects that they claim, and the very last weapon has a tiny blue word next to it that doesn't seem to do anything with clicked. I think it says info but I can't be sure (it doesn't do anything anyways).
This is all that comes to mind for now. I don't usually post but I found this game had alot of potential, and I'd point out some of the things the others havn't got around to mentioning. The first playthrough is easy enough, and most of the bugs aren't even noticable until on prestige, so I think I'll rate this a 4/5.