It's not Dungeon Hunter's fault. Not all PS Vita games were created equal, and Sony's launch line-up of stunners and stinkers means the middling get lost in the shuffle.
To its credit, this has a nice line in dungeon-crawling and loot-collecting, repetitive to most but at least there's an audience.

Customization is intimidatingly deep, with character-specific perks, full body outfitting (including left and right hand weapons), skill trees, unlockable moves and four-play co-op.
Its problem isn't any of that - more that there's no unique spin on a genre that, by now, has been done to death. Complex but clichéd.