Can this 'liquid plastic' fix anything?

Can this internet-famous gadget fix anything? We tried it to find out.

Includes Re-usable Molding Bar to Create Tabs and Small Parts. Glues, Fills Gaps, Remake Tabs, & Repair Stripped Threads. Sandable & Paintable! Video

Plastex Plastic Repair Kits - Easily Glue, Repair or Remake Broken Plastic, Fiberglass, Wood & More!. (Standard White Kit)

Liquid Plastic Refill Kit – FlashFix

BondicEVO: Use This Versatile Liquid Plastic To Fix Everything