Ditto. Catalina is working fine for me too. Mac user since 2006, I think the first intel chips. It's definitely not a noticable change. The only such change was the upgrade to Snow Leopard. That was a 'wow' change. This is more like a 'meh' change. I haven't tried the iPad sharing thing yet, not too excited by that either.

What I have noticed is that Apple hardware is highly inconsistent these days. I think it's a function of the Retina displays. The non retina Macbook air with such an underpowered processor sesms to work better than the current Macbook air.

OTOH the Macbook pro is seemingly working great. The 1.4GHz entry model outclasses the older generations by leaps and bounds. I have also started appreciating the touch bar, despite being a heavy vim user. The one touch shortcuts for da y to day stuff like zoom sharing desktops etc are very welcome.