Ok, I think that gp should get a little balance. His barrels are ok, I get it, armor deny, this is his signature. But in the last games when Iplayed vs GP they all went full dmg with razor, trinity, yomumu, things like that and they were very tanky. I think riot should wort a little on GP sustain. He was heal, cleanse and it is too tanky even if he goes full DMG. What are your opinions?
No. He becomes really tanky when he has Grasp and 
A heal that costs 80-120 mana, and is immobile af if you get the chance to kill his barrels. His damage patterns is pretty easy to notice: Lands 1st barrel, either gtfo his 2nd barrel's cast range or prepare to kill his barrels.
Secondly, you were playing a range champion against him, so you should have a ton of advantages in terms of laning phase & sustain.
Grasp gp is unfun to play against
