I put together a mobile recording studio / live guitar rig and was housing it in a 6U rack with a drawer for my laptop. It was unwieldly, really heavy, and everything got in the way of everything else.
This solved my problems by giving me a laptop compartment separate from the rack and I was able to get my power conditioner, 18i20 interface, and my Axe-FX II all snug in the rack. There's even a nice gap at the bottom for airflow (and for the handle) and once I get my cable management in order everything will be in there with no moving parts.
The wheels and handle are a welcome bonus. Bringing this rig into the jam space or up the stairs to the show stage is a breeze, now.
Only complaint I have is the included screws and rubber washers are pretty low quality. I had a box of Rackworks screws that I had previously purchased and I would recommend getting some of those instead of using the ones included here.