I did my first roundtrip from / back to the new Delta LGA this week.

Quick thoughts:
1). Looks great
2). My outbound/return flights were in the 70s tentacle, my post security walk was only a couple of minutes. From all the interim maps I hadn't previously known if the walk would be JFK-like
3). TSA and Clear seem like they have hiccups to work out. Despite all the Pre-Check machines, it took a while before someone helped me to one, and the line of confirmed pre-checkers was definitely longer than the non-pre checkers. The pre-check line may have been moving more quickly (not sure), but overall the process was herky-jerky, they almost made me do the machine twice
4) 70s gate restaurants / etc. looked nice, I didn't sample
5) The Uber spots are right at the exit of C, what a change from the interim weirdness.

Overall I'm pleased, hopefully the walk to 90s ultimately isn't terrible.