Yes, iTerm2 is one of the best macOS apps. It's the first thing we have new developers install if they're new to macOS.

On the 120Hz MacBook Pros, there's an advanced iTerm2 setting that lets you change the maximum frame rate to 120 or above (adaptive frame rate also needs to be disabled).

For monitors with a high refresh rate, it's worth checking out. You can see the difference by running:

  $ cat /dev/random | hexdump