Both games are really fun, but this one felt more like a complete story. The endings are less of a sketch gone wrong and more of a story playing outself out (and then going wrong).
Very good characters, voiceacting and dumb humour, this game's dumb dialogue will be in my head rent free for a while.
You could play this + its prequel in about 6-8 hours I think, easily doable in a day and definitely worth the time.