I guess I'm in the minority when it comes to Kindred...
I actually like them a lot, and I'm hyped to buy them instead of a Fiora rune page when they come out. People say they're a mash-up of recycled things, but sometimes it's about taking what you have and making something unique out of it.
-People say their ult is just a Bard ult, but unlike Bard, they can't disable a turret. It only saves living things, and the living things can still move while they're in the ult...and they can mess up by moving outside of the ult or being pushed out of it by force. It's a safe zone that anyone's welcome to hop in, despite the fact that as soon as it ends a lot of hit-boxes are gonna be flying.
-People are ticked that they have another 3-hit-proc ability, but, to be fair, there's no true damage here. Not nearly as bad as Vayne who just runs through shit, but yea, they probably could have done something else with this.
-Their Q is related to Kalista, but the Q is only on low cd when they're in ranges pre-made by their W. This means they only get those continual hops when they're skirmishing in set spots. Outside of that zone the cd is much longer than that.
-Their W is pretty unique in and of itself.
-I've seen people relate their passive to Garen, but Garen's passive is "Whoever got a kill last is the guy that eats this damage". Kindred's passive is "We don't care who you are. If we pick you, and you die, we get a permanent boost. Period". You can literally just target the guy that's feeding the hardest and kill that guy over and over again for free stats. You choose the one you mark. Garen just responds.
I'm actually psyched for the champ, but the 3-hit-proc thing is probably the part I'd be unimpressed with if anything. Still a lot more good than bad if you're a bit more open-minded about it.