It supposedly held its own in trials and exercises with other MBTs of the era, and had a marked advantage when defending fixed positions. But it came from an era when effective gun stabilization wasn’t really a thing yet (meaning that having to stop to aim wasn’t that much of a disadvantage) and the primary threat to tanks was expected to be other tanks (meaning it’s light but insanely sloped upper armor would be effective against projectiles on a flat trajectory, rather than a massive liability against top-attack missiles and other modern threats like drones). An excellent outside-the-box design for its era, but not at all suited to the modern battlefield.
It supposedly held its own in trials and exercises with other MBTs of the era, and had a marked advantage when defending fixed positions. But it came from an era when effective gun stabilization wasn’t really a thing yet (meaning that having to stop to aim wasn’t that much of a disadvantage) and the primary threat to tanks was expected to be other tanks (meaning it’s light but insanely sloped upper armor would be effective against projectiles on a flat trajectory, rather than a massive liability against top-attack missiles and other modern threats like drones). An excellent outside-the-box design for its era, but not at all suited to the modern battlefield.