Iron Man Mech vs. Ultron

"With a BrickScore of 73.3, Iron Man Mech vs. Ultron earns a solid recommendation — but make no mistake, you're buying this set for the minifigures: the long-overdue comic Ultron and a sharp new comic Iron Man are the real stars, while the mech is a perfectly adequate but forgettable backdrop."

All three reviewers agree that 76307 is driven almost entirely by its minifigures — particularly the first comic-based Ultron in LEGO Marvel since 2016 — rather than its mech build. The Iron Man mech is described as competent and reliable but formulaic, following the same proven template used across the broader 2025 mech line. At £12.99/$14.99/€14.99, the set is widely considered good value as an affordable vehicle for two desirable comic-accurate figures. The mech itself earns only modest praise, with reviewers noting limited articulation and an unremarkable back side, but none see these as dealbreakers at this price point.

Where they split: Reviewers broadly agreed, but split slightly on audience: Brick Fanatics and Brickset lean toward collectors as the primary buyer, while Hoth Bricks positions it more toward kids. There is also minor disagreement on how the mech ranks within the Iron Man mech lineage — Brickset calls it the "best yet" of the Iron Man mech trio while also noting it falls short of the Venom and War Machine mechs, whereas the other reviewers don't engage with that nuance.