Honest question. I spend my development time switching between OS X, Linux and Windows and I've been using iterm2 for years. Yet I have no idea why people claim that it is so much better than anything else out there. If I where to completely give up on OS X for Linux, iterm2 wouldn't even make the list of things I'd even consider missing. What unique killer features am I not using?
clean, navigable UI is probably at the top... split and tab views is another huge one for me. I usually have my last desktop with iterm, and 3 windows open... one is running my project with a watcher, and the other two for various tasks.
The next screen is my editor, next browser, finally email/comms. ConEmu is OK on windows, and I've tried a few different linux terms, but not is as easy/nice to use by a mile.