Hmm I've read the rules book and I remember there are 3 "Jobs" in the game.
1 Bank job ( 3 floors 3 safes )
2 Office job ( 2 floors ) not sure of goal??
3 Fort Knox ( 1 giant floor 5x5 grid hard mode )
I'm sure the Office job is the beginner level which is training for the bank job. Seems highly customisable so shorter games should be possible.
Obviously tile draw is a major factor but I don't mind investing the time in longer games. My son and I will play and I will play it solitaire. Once I've got a good angle on the game I may factor in a time limit to make the raids a bit more risky by having to take chances.
Seems like fun.
there's also an map genator http://gabob.com/burgle/
goal is the same in the shorter map, just 2 safes.
it's not that game is too long, but that once you figure out the puzzle it can still take a while to actually execute and most of the randomness is tied up picking up event cards which don't come out as much as needed.
all in all it's a great co-op, just with minor issues.