Thanks you for sharing this. Interesting concept but a few concerns:
1. Lots of configurations means lots of pieces and lots of pieces means lots of opportunities to lose or misplace those pieces.
2. Most hitch mounted accessories are heavy and made of steel for a reason. The forces applied with weight hanging off a hitch are severe. Construction appears to be aluminum and unless rigorously designed and constructed, it will likely suffer structural failure from vibration and material fatigue. Would hate to lose my stuff halfway to tailgating at the stadium.
3. Pricing looks very reasonable. Downright cheap in fact. So cheap that it's unlikely to make any money in the short term, medium term nor long run. I urge the inventor not to quit his day job.