I’ve grown GG4 3 times in the tent and once outside. I love the plant and it’s buzz. It can take up some space but is a healthy plant and if scrogged can have a nice yield for a tent. Buds are super sticky too and smells great.
I have grown The Original Sensible Seeds GG4 and it was stronger than regular GG. I haven't grown it again. I ended up giving a lot of it away and then after a few months when it had cured I tried it again and wished I had kept more of it.