They improve the intonation a ton! Much better. Even with my same old strings. I just did a quick setup with the same strings because I wanted to hear how the tone would change.
I notice a difference in tone on my Nocaster. It's snappier and brighter, country twangers would prefer it. It doesn't sound bad at all, but my old ones had a warmer, fuller tone. They were meatier though. Saddles and screws. I even put one of the saddles back on for comparison!
I definitely am sold on the compensated saddles though. Big improvement.
So who makes beefier compensated saddles?