Unfortunately, it's nowhere near close feature-wise just yet: proper quake mode, search, prompt navigation, line timestamps, tab output indicators, forced keyboard locales, customizable toolbar with user-defined variables/indicators, are all too useful to give up iTerm2 for anything.
The others do sound useful too -- I personally hit a lot of spurious "tab output indicator" notifications in iTerm2, but if it _did_ work I could see how giving it up would be painful.
Proper quake mode is just one shortcut to show/hide the entire terminal window, otherwise the app is completely hidden from the app switcher and the dock. This also involves handling macOS keyboard-to-app layout mapper not reacting to this event as the window loses its first-class citizen status in this mode.
I tried iTerm’s quake mode after the Visor haxie for Terminal.app was shuttered, but unfortunately was left disappointed. Its behavior is kinda glitchy and inconsistent in comparison, which was surprising because one would expect a native feature to be better than one hacked in by a third party, but that was not the case here.
