I built one of these a year or so ago and I love it.

I did a few upgrades though.

I put automotive carpet on the base so it can't scratch the bottom of the cabinet.
I put t-molding on the curved edge. This prevents it from scratching the floor, and its slick enough that I can slide a machine across the floor a bit if I need to.
I also bought a jack that has a 3/4 nut for the screw to raise and lower it. Now I just use a 3/4" socket chucked into a drill and I can raise/lower a machine in 10 seconds with 0 effort.

No issues whatsoever with it.
Ive lifted dozens of games with it and not a single bit of fatique.
Highly recommended.