If he was at full strength he could utilize sage mode in batle and use his newly found brille to block out light to stop visual based genjustu.As he is now he can probably dispel most genjustu except the ones of itachis class obviously.He is not easily caught in a genjustu as most areIs Orochimaru immune to Genjutsu?
^ This a believe.He is not easily caught in a genjustu as most are