One thing I think it has over iTerm2 is Broadcast across all terminals. It's fairly customizable. I prefer that over Tmux. I still use iterm2 as the daily drive

One thing I think it has over iTerm2 is Broadcast across all terminals. It's fairly customizable. I prefer that over Tmux. I still use iterm2 as the daily driver, but have Tabby in my back pocket for moments I find it useful over iTerm2, which is rare, but not zero. I personally prefer iTerm2's password manager and regular expression triggers.