I bought this to fit a Kemper Profiling Amp rack, while leaving some space inside for the accessories (cables, remote) in the back, and also allowing a bit of space for other potential gear (e.g. wireless). It's the perfect size for this.
It's light, cheap and does a perfectly decent job at all that.
Unfortunately though, the front and back pieces don't clip on too tightly. They don't do a brilliant job at staying on - a knock can quite easily make one of them fall off. This is quite a downer for this kind of product, which is designed to keep expensive gear safe.