I said before VAR was introduced, I thought it would be terrible. First, because of the interminable delays of the game, and second, because the same officials would still make poor, just different, decisions looking at video.
It's actually been worse than I thought on both counts.
There's no point saying it got one decision right and ignoring the 10 that it missed or got wrong.
I'd like to see the stats, but my impression is that there has not been any reduction in the overall number of incorrect decisions since it arrived.