I use this for my portable recording rig - Macbook pro 15 in a Peli hardcase, Focusrite Scarlett 18i8 interface and various microphones. It is a perfect fit for the Peli case and the interface and protects them very well, while still being very portable.
It also fits any mics and cabling that I need with room to spare.
The case itself has good thick padding and seems to be very well made. I also like the fact that you can zip away the backstraps when you don't need them.
Overall, I can't see any negatives and I think it is an excellent product and great value for money.