
"Scoring 83.6 with owners averaging 4.77 from 849 ratings, the Liebherr R 9800 is a landmark Technic achievement that rewards the investment with an unmatched motorized build experience, even as buyers candidly acknowledge the $449.99 price demands a committed LEGO Technic enthusiast to justify."
The Liebherr R 9800 Excavator (42100) earns a BrickScore of 83.6 and its Highly Recommended tier as one of the most ambitious Technic builds LEGO has produced, combining 4,108 pieces, seven motors, two Smart Hubs, and app-controlled functionality into a model that impresses in both build process and finished operation. Reviewers consistently describe it as a 20-hour-plus build that rewards patience with a fully functional, app-driven excavator. Owner ratings of 4.77 from 849 ratings reinforce the critical verdict, though the value-for-money signal of 3.90 out of 5 reflects honest acknowledgment that the $449.99 price is a significant investment.
Where they split: The owner value-for-money score of 3.90 stands out as the one area where buyers show clear hesitation, sitting well below their 4.77 overall rating. Critics and buyers agree the set is excellent; both acknowledge the price is genuinely high. This is a case where satisfaction and value perception diverge without undermining the overall recommendation.
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Unlock with Collector or Reseller"the Liebherr is really the best deal among all of them, you only pay 26% for the 2 hubs and the 7 motors compared to their full price at lego.com"
RacingBrick
"The largest Technic set ever, with the largest amount of motors, all controllable by an app. But also the most expensive."
Rebrickable Reviews
"Moving mountains with the new LEGO Technic 42100 Liebherr R 9800 Excavator"
The Brothers Brick"the Liebherr is really the best deal among all of them, you only pay 26% for the 2 hubs and the 7 motors compared to their full price at lego.com"

"The largest Technic set ever, with the largest amount of motors, all controllable by an app. But also the most expensive."

"Moving mountains with the new LEGO Technic 42100 Liebherr R 9800 Excavator"
The Liebherr R 9800 is regarded by most owners as one of the greatest Technic sets ever released, offering a massive, deeply satisfying build and impressive app-controlled functionality, with the main concerns being a high price, occasional missing pieces, and some app or Smart Hub connectivity frustrations.
Amazon4.8
LEGO.com4.5