I've grown Grape God inside and outside in a greenhouse (Oct 15th), on and off for several years. I grow using TLO style with compost teas. My scale if this helps:
Ease of Growing: 10
Yield: 10
Potency: 5
Taste: 6
Smell: 6
Appearance: 8-9
Effect: Sluggish
If yield and ease is important than this might be a Top 10 selection, but for me in my life, I prefer a day time smoke that will not slow me down, and this strain lacks the potency for what I seek from a night time strain.
Its a good cash cropper and beginner strain for a lot of people, even the lack of potency most people will not be disappointed. A side note, the price of their seeds seem to be a bit expensive.
I've grown a lot of Next Generation Seeds and deem them reliable, with a small gripe that their seeds seem to be inflated