Stand is solid but the mounting bar does not seem well engineered. It is drilled with only to allow two-bolt mounting of the G4 with it hanging at the outer end of the bar instead of centered over the wheels. The result is an awkward, unbalanced mounting position. This could easily be fixed by adding another pair of holes through the bar further inboard, to allow mounting the G4 more over the wheels.
If you ever fix this oversight, send the revised bar!