So it looks like we have a few things coming up in a hotfix:
-Brightness/Lighting Issue (http://www.grimdawn.com/forums/showpost.php?p=459334&postcount=37)
-Mob OA on Ultimate being too high (http://www.grimdawn.com/forums/showpost.php?p=459358&postcount=15)
-Life Leech/ADCTH not functioning on bosses/heroes (http://www.grimdawn.com/forums/showpost.php?p=459095&postcount=97
So if any of those are your concerns, worry not. Crate is on it.