I only started playing it today and am already full of joy and anger - joy over the beautifully-handcrafted levels and intrecate design, anger over the sadistic puzzles that make me feel exposed for being a simple bloke.
If you want to enjoy your holiday-season, download it now, 120 levels are sure going to take a long time (and take a toll)!
Great LevelPack, well done BobbyZeal!