The game's changed a lot, but yeah off-the-grounds are really important. I figured out the timing when practicing my first Filia combo by using slow-mo in Training Mode (funny that the only other game I've played with Training slow-mo is Smash Bros). Setting the dummy to tech is important to get the exact timing too.
It's not super-active but most of the time I can find a match without red ping. Skill levels may vary. I'm on PC, I think most of the players have migrated there since it included the Endless Beta which, well, ended about a month ago for hopefully the last time (so Mike Z canfinally get some sleepfocus on Indivisible, also so the physical copy that's coming out really does carry the final update).
I play Ramlethal in Guilty Gear. She doesn't exactly click, but she plays so differently from anyone else and she's cute. I'm terrible with her.
Edit: Also the Rev 2 demo is available for PS+ members until the 26th.