Overall an ABSOLUTELY awesome piece of software, BUT...
... I really dislike, that they don't allow modpack authors to include it directly. I understand what might be the reasonings (less donation potential) but still think that should change. This isnt a paid piece of software, so I personally think it shoudl be allowed to be included, even if it ment that the user'd waive their right to complain or search support from the optifine author directly.
By Norok Vokun G.