Ok ZSS is good, really good.
I use her as a secondary
Heres what I know:
Her aerial game is powerful and she has range vertically and horizontally.
She's not as easy to gimp as most people think and she has some impressive combos.
But she doesnt beat us that bad, she cant camp with paralyzer cause we can magnet it and if we can see it coming we also eliminate the use of her famous dsmash with magnet.
Her aerial game is better than ours though. Her upair is her best move and best aerial in the game, ZSS players use it ALOT. It can also beat our dair and everyone's else's if spaced right.
She also outranges us with her plasma whip, but it has a blind spot at the part closet to Zamus. As for approaching, if she does approach it will be with dash attack most likely and she can use jab,utilt,ftilt, and dtilt after it. Nair is safe approach for us against her, but not dair, she can use upsmash and up b against us and even better uair. She's light so we can kill her easily, but she can live a little bit longer if she use her down b to momentum cancel. When trying to recover watch out for her dsmash, ZSS players will usually try to use dsmash right as your trying to get back to the ledge which could lead to a down b spike, so when you can recovery above the stage with magnet pull, if your below the stage zap jump. At close range we win, our jab and ftilt is faster than any move she has except maybe her jab. Imo she not really good at close range combat,but watch for her spotdodge to utilt. Her grab is as slow and laggy as ours so dont worry about getting grabbed unless she paralyzes you first. She will usually use down throw, which is her best and follow up with aerials. At high percentages watch out for dsmash because when she paralyzes you she will use a KO move (bair,fair,plasma whip,and down b) and there nothing you can do, you will lose a stock. I think thats everything, I know its alot lol.
This matchup imo is 55-45 in ZSS' favor.