Kalista feels clunky
So after having played Kalista several times I've come to the conclusion that I personally don't like her. My issue is with her passive which feels incredibly clunky to me. I understand that it's an entirely new mechanic to learn, but it seems like more of a restriction than an advantage on her. Here is my issue with it:
You can't simply walk after autoing. If you auto you either sit in the same place, or you jump a preordained distance relative to your boots. This is extremely limiting to your control over the champion in that you can't move smaller or larger distances based on what you need in the moment.
Here's where it can mess you up really bad: You're kiting in a team fight and X champion walks up on you. You auto them and attempt to kite back, but jump farther back than they move forward. This puts you out of range for your next auto attack and cuts into your mobility simultaneously.
If I had a choice I would change the passive to require a specific input to trigger the jump, rather than automatically processing it on a move command. (EX: auto attack -> right click is a normal move command. Auto attack -> left click is a hop). This gives the player more control over the champion and everything would feel a lot more fluid imo.