Block girdles, yay or nay

So let's face it opinions/facts are constantly changing on a lot of popular upgrades . Many preferred parts have been ridiculed over the years as no good junk subpar etc only to find out that in the right hands and combinations there as good as the new stuff sometimes even better. The last consensus that I heard on block girdles was save your money they don't really help for a small block Mopar, has that changed? do you use one or do you hate them and why.