This is a great article on how it worked (or didn't work) when first used in Germany. Not clear whether it really got any better other than each decision taken by VAR did reduce to an average of 53 seconds but there was still plenty of chaos...
Exactly this. I think over the years we have taken on the chin things like a marginal offside decision going against us, what I hoped VAR would do was stamp out clear injustices in the game, like players being sent off incorrectly, dives at penalties, blatant handball goals.
No one wants it...