The reason I chose this crate is for the 3rd door on the top of the crate. It is easier to access for feeding, petting, removing soiled bedding, or giving treats. There are also 2 side doors so that I can place the crate against a left or right wall. The tray slides out when I need to do a more thorough cleaning. This crate is lightweight for easier moving around my house. Therefore the wires are a little bit thinner than a heavy duty crate. But they are sturdy enough for puppy training up to a medium sized pup. My pup is a German Shepherd mix so I expect i’ll need an upgrade in the future. But for now it’s a nice fit.