
"An undeniably original Technic vessel that splits the room: critics found the exposed mechanics and impractical floating frustrating enough to recommend skipping, but 1,707 owners gave it a 4.79 average, making the Catamaran's Mixed Reviews BrickScore of 68.8 an honest reflection of a genuinely polarizing set."
The Technic Catamaran (42105) is a genuinely novel set that divides expert opinion sharply: Brickset scored it 45, citing impractical floating performance, ugly exposed rack gears, and poor display prospects, while the available owner data tells a very different story. Across 1,707 buyer ratings it averages 4.79 out of 5, with 92% recommending it, suggesting enthusiasts are far more forgiving of its quirks. The set's BrickScore of 68.8 reflects that moderate split, landing in Mixed Reviews territory.
Where they split: The expert-versus-owner gap here is the most pronounced divergence in this set's data. Brickset explicitly recommended skipping it and questioned the point of the set, while 92% of 1,707 owners said they would recommend it. Much of the owner enthusiasm comes from people who motorized it or simply appreciated the novelty; critics focused on design execution and practical use. Agreement between the two expert sources is rated moderate.

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"lofty expectations exceeded hello everyone this is the Lego NASA Space Shuttle Discovery set that also comes with a very nice Hubble and it is a glorious set indeed"
JANG's LEGO Reviews"For a 'floating' LEGO set, and not a high-seas-capable model boat, the Technic Catamaran acquitted itself more than admirably in the Pacific."
Zusammengebaut"lofty expectations exceeded hello everyone this is the Lego NASA Space Shuttle Discovery set that also comes with a very nice Hubble and it is a glorious set indeed"
"For a 'floating' LEGO set, and not a high-seas-capable model boat, the Technic Catamaran acquitted itself more than admirably in the Pacific."
Amazon4.8
LEGO.com4.4