Looks like our visits overlapped!
My overall impression of GE is very much the same as yours, although it appears I enjoyed the land itself more than you did. I intentionally did not study a map before arriving and found the layout confusing, which I actually enjoyed since it added an element of discovery to my first visit on Friday.
I also enjoyed the many smaller shops, rather than one generic mega store, although, like you, I did not make any purchases.
We sampled the food and liked it, particularly the entries at Docking Bay 7. However, at those prices, I won't be eating there again.
When we arrived for our Oga's Canteen reservation, there was a line at least 20 deep waiting outside, so I cancelled it. I suspect it would have been fun. However, given the published prices, it's also a "one and done" experience.
My entire party found SR to be an excellent attraction. I particularly enjoyed it from the chess room onward. The folks at Disney did a wonderful job making the Guest feel like they are walking onto the Millennium Falcon, with the design of the queue and ride system making it feel as if it was just our party of 6 boarding the cockpit.
Overall, I think SR is WDW's best attraction since TOT in 1994.