That has to be among the more thorough tests of durability and construction I’ve ever seen done on a new guitar. The action issues are an easy fix, so playability and tone were pretty darned good at that price! Sustain was, as noted, impressive! The liquid tests were something I’ve not seen, but playing with bug spray on outdoors is always a concern (I normally risk my health instead of the guitar finish! Lol)
I need to check more of this guy’s content.