I caught the very end of the opening cuz I messed up the first video.
I agree on OEM parts EXCEPT when I called toyota, the price for my particular tstat was $50! 1/5th the price and a lifetime warranty. I have to accept that there is nothing wrong with buying this product. It takes 10 minutes to change.
Old stock thermostat was up to temp in 4 minutes. (cold over night)
New thermostat was up to temp in 2. (cooled after initial warming this morning)
Not quite scienific, but so far so good.