I just want to know if you guys like Mojave or Catalina or have had any major negative issues.
I changed to Mojave a few months back and have been extremely happy with it. My motivation was that I wanted, more than anything else, always to have the best security. An older, no longer updated OS was not going to provide that.
Mojave also accommodated a second priority, which was to keep a bunch of 32 bit apps that I was not about to abandon. Before moving from High Sierra, I actually installed Mojave on a separate drive and put all of my 32 bit apps through their paces.
When the time comes that security forces me to move to Catalina, I will have a separate drive with Mojave and my 32 bit apps.