The only real win for dterm is the context-aware factor, but I find it to be a big-enough win that I keep it around. If you just need a quick virgin window and are using iterm2 (as you should be) then you can go into Prefs > Keys and set the global hot key toggle and then select the 'hotkey toggles a dedicated window with profile' to get a dterm-like overlay window that is a real terminal session.