It can be hard to assess JAS. As others have pointed out there's a lot of noise and hype, which is great, but makes it hard to see the real picture.
It's very difficult to stand out when you're playing 13. I remember having to do player ratings back in the day, and seemingly always giving AAC (Adam Ashley-Cooper) a 6/10. You don't get the ball much, and when you do it's normally a crash ball or a link. We only notice 13 in defense when they get caught out of position.
It's a position where you've got to execute basic skills ruthlessly. It's why Conrad Smith was so good. No flash, just consistently great execution. So JAS was dealt a pretty tough hand to begin his international career IMO, especially in a team without a top class 9/10/12.
With that in mind I thought JAS was pretty good. One standout game and two quiet ones, albeit without many errors. He rarely got caught out of position, and both Scotland and Ireland ran plenty through those channels. His basic skills in attack were also good - one forced pass late vs Ireland stands out but I can't remember any other bad mistakes.
As a league convert I think his willingness to take team first options was what pleased me the most. Cleanouts, draw and pass, great support running. That generally comes much later to leaguies and is the hardest part to instill. We never quite got there with Folau.
And then you add to that the x-factor of kick-offs, aerial skills and an offloading ability we're yet to tap into and I think there is every reason to be really happy with how his tour went.