I bought this to protect my gas furnace from my Roomba and it works perfectly! The mesh panels aren't perfectly flat (they bow a tiny bit), but I wouldn't have noticed it if I hadn't been checking for flaws/problems. At 13 lbs it's not particularly heavy for its size; but so far it's stable and sturdy on my smooth tiles and hasn't moved at any angle the vacuum bumps into it. Super pleased with the purchase. Would recommend if you just need something simple and reliable.