I've been using mine for a few months, and while there's definitely a lot to love about it I will offer a word of warning:
Baggage handlers and TSA officers have a tendency to grab the top handle and drag the case across floors of all types (including concrete), causing significant damage to the track plates for my wheels. In addition, the bottom edges of the case are not externally reinforced to withstand drops off of a conveyor belt or any sort of rugged "common carrier" handling.
Also, the wheel plates do not appear to be replaceable by the user. Unless we're supposed to leave the wheels on when checking the case, I see this as a rather significant design flaw. I understand that keeping the weight down is a factor, but if this continues to happen my case could soon be rendered unusable for commercial air travel.
Unfortunately, damage from this type of mishandling do not appear to be covered by the GG warranty, at least as I interpret it. For the price I paid for this case, I would have expected that these issues would have already been sorted out since the product hit the markets a couple of years ago.
A simple solution could be to make the top handle removable so that gate agents, baggage handlers, and TSA officers would use the (TSA locking) side handle instead and not be inclined to just drag the case around.
All of the above offered FWIW! ~ Chris D