(Note that I'm giving it a 10 using the old Netflix scale of 5/5 being "I loved it", not that I think this is the greatest thing of all time or utterly perfect.)
I really, really wanted to like Legends in the first season. Piles of great characters, superheroes, a freaking space ship that's also a timeship. There was virtually unlimited potential for what they could do...but IMO the writing just wasn't there.
And then some new writers came in on S2, and from the 3rd episode on, it's just been a lot more fun. I also LOVE that they made Sara the captain. She's just so much better than Rip (and I love how they're using Rip as of S3). And somehow Sara just keeps getting cooler.
Well from this first episode of S3, I think I'm liking it even MORE than S2. The writing seems even sharper, the characters more natural still (night and day difference from the sort of awkwardness of S1), and SO many fun ideas.
Honestly I'd have been perfectly happy had I seen this first episode in a theater. It's probably better conceived than Guardians of the Galaxy 2 was.
So many fun moments, though I'd watch it just for Sara beating the **** out of Julius Caesar :-D Hell, Wally's cameo was somehow more fun than he usually is on his own show! (And the actor that plays Gideon got her SECOND on-screen cameo of the series, to fun effect.)