what is 2 x 1?
And how big is a "large play area"
And I like that they separate dogs by size, less chance of damage, though Frosty plays nice with dogs of all sizes and ages. I do think that dogs need to understand they need to treat different dogs, differently.
It does seem well organised. I'd still want to watch for a while or a day to see what happens. I wonder if they can fit web cams?