The only thing that has been bugging me with ElementaryOS is the Terminal. Attempting to type into the Terminal works just fine, but when I try and use Vim or a REPL and the output spans multiple lines, the editing of the text in that Terminal slows to a crawl.
In addition, attempting to remove characters will end up causing the cursor to appear one place to the right than it actually is, which means pressing backspace when the cursor is over a white space will actually delete the letter next to the whitespace.
I don't have this issue with
xterm; it's only the Pantheon Terminal that appears to have this issue.
It makes editing with vim a pain, and for some reason I can't snap
gnome-terminal to the dock either.