When I reviewed the Luba 2 AWD 3000HX in September, I was seriously impressed. It's quiet, very capable, kind of fun, and made me feel like a neighborhood hero while sending it from house to house mowing everyone's yards. Since then, Mammotion sent me the US$2,799 Luba 3 AWD 3000HX for a review. Clearly, Mammotion wasn't content with simply being "awesome." Though the Luba 3 very much looks and feels like the Luba 2, it acts significantly smarter. The short version?