Well, it's a bit hand-wavey, but I could see this as becoming a lot of fun given a decent set of house rules.
Lots of random (go figure in a roguelike!) but lots of minor variety among the spells and items (less so among the enemies, but again let's look at it as a foundation to build on rather than a finished game...)
Because of this setup and teardown are very quick. It came with a simple/nice enough medium sized drawstring bag which is great for randomizing without requiring simultaneous avoidance of gaze with assurance that tiles are right side up, which is always a conundrum when shuffling tiles... the "heart containers" and hero tiles are the only ones not to get shuffled. There were 3 unmarked tiles in the punchboard which could easily have made for additional player-authored tiles, but unfortunately these tiles don't have the "pdq" logo backing them, so they wont exactly be surprises in a dungeon were you to customize them.
I do wish the printed rulebook was a bit better, but it's certainly not the worst I've read. The online rules wiki is a bit better/clearer: http://pocketdungeonquest.wikia.com/wiki/PocketDungeonQuest_Wiki
Even so, the official rules are fairly thin and make plain the author's intent for gamers to make the game their own.
I'd love to see if there's a collection is decent, more solid rules for the game, but as I say it's definitely good fodder for house ruling and could make for really fun hack and slash filler.
3 out of 5 for potential fun, 4 out of 5 for the simple but charming art. Really do like the logo and all the hero art in particular. Feels like those 70s-80s Mr Men/Little Miss books to me, and I loved them as a kid.
Stay away if you have 0 enthusiasm for DIY, but if knocking together a set of dungeon crawl rules on top of a simple/fun but fairly vapid base set of rules sounds fun, have a go.