What Is The DEAL With Kalista?!

Kalista has gone through quite the amount of changes since her original release, most of which I'm pretty sure were nerfs. I played her a lot ((nearly religiously, and with a track pad too!)) when she came out. After a while I did eventually stop playing her with the introduction of new and interesting champions that caught my attention, but have recently tried to pick her up again. I remember her being such a powerhouse when she originally came out, but you don't see her so often anymore. I'm sure changes to her have deterred some people playing her ((along with a couple newer adcs who have started stealing some attention )). I know Kalista isn't as strong as she was upon release, but I'm still curious. Where does she lie in terms of strength and the metagame today? Sometimes I'll have games where I feel she's super strong, and she most certainly has some amazing strengths to her, being able to secure objectives like dragon, farm way too easily with the help of her Rends mana and cooldown refund upon minion kill with it, her ability to capitalize strongly on her supports damage with the W passive, capitalize on her supports mere presence with a big knockup ultimate, and the sheer amount of jumping around she gets to do with enough attack speed! And in other games I can see why she might be in a tough spot, like how hard her early game can be with the way she autos, how she really needs her support to be nearby in order for her to reach her full damage potential ((or even have an ultimate)), and I can also just see her underperforming in comparison to most other adcs right now(( )) Anyway; I pose the question: Where does Kalista stand right now as far as strength and metagame is concerned? ?