I have nothing to compare to because I came from the starters directly to the lower G20s. Forgivness is fine. Don't believe the fears. Distances are ok, a little random at times, but ok. I use the WGT Tour-S balls with one dot distance and two dots spin. Topspin hurts carry, but b/s doesn't fall too far off stated yardages.
I am noticing I can get up the hills at Bethpage a lot easier....that must be the trajectory....even though I can't really see it taking place in real time. The wind is a little more, but not much.
I think the set rates out about as advertised. I don't think they need a lot of getting used to at all. I don't even notice mis-hits killing my distance like has been reported multiple times.
I would say they are a nice set of clubs. Grab em, play em, and decide for yourselves. But, I'll likely have them for a long time.