New Bruiser kha worse than old rengar?

After playing around 40 games on the Kha'zix rework, I have to say he feels a little unfair to play against. Go and E-Q onto someone, W (there procs thunderlords), BOTRK active, Q again (if isolated), then auto with titanic hydra active and if they are not dead Q again if isolated, if outnumbered R (R E after level 11) away. The target is generally dead after the combo and their entire enemy team will waste cooldowns trying to kill you so then your team is able to clean up. This works in Gold/Plat elo pretty damn well and the only way I have been outplayed is by the enemy jungler punishing me for ganks by invading my jungle, or hard cc. I believe the reason Rengar got reworked was due to how fast and unfair his combo was, and they left kha still able to pull off a 2 second insta kill combo for squishies even if you are tanky. Not complaining, just one tricking now :P Sure it takes fastISH mechanics but if you play him over and over it becomes a breeze to pull this off. Yes, you do sacrifice some early game damage, but you will still leave squishies very low on early ganks and you can just feed the kills to your laners.