This is my first proper guide so please give me helpful feedback and comments on how good it is, sorry its not the tidiest layout :D
Edit: I did not realize I had chosen Hybrid Penetration, although I wrote about it. I cannot figure out how to change it. Please just think of them as straight armor penetration :)

Pros

1. Very Slippery
2. Can kill very fast if E is fully procced
3. Can clear jungle quickly
4. Very good ganker

Cons

1. Very slow moving
2. Squishy
3. Can get behind easily
4. Reliant on passive

Kindred is a highly mobile and bursty Jungle AD Marksman who is very nimble and a great kiter, she is incredibly strong late game, if her passive is stacked. She can take on multiple champions with ease if full build is completed.
She has average base state

Farming
Its fairly simple since you can summon wolf to help you clear the camps faster, and you can hit 2-3 enemies at once with your Dance of Arrows. Your E allows you to kill the camp leaders quicker. If you do wish to build Devourer, you can generally get it by 12-15mins If you do well with ganking, dragon control and skuttles. The fastest I got devourer was 11:46.
Ganking
I recommend level 2, 3, 5, 6, 8, 9, 10 ganks since your power spikes are level 3, 5 and 6 (early spikes), These are optimal points since you will have your Wolf's Frenzy ready and your Q resets will only be 2 seconds, so you will do a lot of damage to most mid laners/adcs since they are quite squishy. Level 6 is where you need to do a team fight asap, if you can correctly place your ultimate you can win the team fight with ease. The optimal point to place your ultimate is when your carry, Darius or Majority of the team will die. I tend to have the habit of just using it when im about to die. Which is a make or break option. Either it was too desperate and used too early, or its a savior act as you die, to try help your team win.
Tip
Try get Drag after your first bot gank, since you will have wounded them greatly, if the enemy jungler shows up. they're kinda screwed. So get both bot laners and mid to help, even if you have skuttle down, drop a ward so your top laner can help if need be. Remember, Gank only if you think there will be a positive outcome. I tend to do a level 2 gank as soon as possible since its quite unpredictable, but if you plan to do this, I recommend getting Red buff second since you will have slow, true damage and a mini-ignite to help secure the kill.
Tends to get first blood by 2:40-3:30

Start Krugs!
Smite Big Krug straight away and kite it a little bit to reduce damage taken, mindful of the taunt meter!
Head straight to the Raptor camp and kill the little buggers first.. they tend to do more damage since they attack fast, this is why a lot of people actually die on Raptors.
Head to Dragon River Skuttlecrab if he is Wolfs target, otherwise I recommend ganking mid to let your smite refresh, If successful.. YAY, you either pushed him back or you got a kill. Now if you don't get a kill and you just push him back or your mid laner dies, its okay. You refreshed your smite. Now head to Red-buff, Do not smite until you're at 60% or less hp, as smiting Red gives you some health back.
Be mindful of the enemy Jungler, as now he probably knows where you are or are headed. If you can, Smite down Wolf camp so you get vision in the blue side of your Jungle. After Wolves, Go get the next stack of your passive, if its in the same side of the map. If its in the enemy jungle. Get your Mid and or Top to help you secure it, as it is likely the enemy jungler/mid or top will try stop you, its nice to have backup so you don't die. (Can also help you bait Top or Mid into a 3v1 or 2v1)
After this stack, get your blue and gank mid or top, then just clear enemy Krugs, smite for the buff again, then gank top or mid (which ever you didn't do before) then head back to your Bot side jungle and clear that and gank bot if they need help or enemy is over-extended. Now you can head back for your first buy :D

Mid game is probably where Kindred is most effective in ganking, she already has one ability maxed, maybe two if you're ahead.
This is when you should be focused on getting kills in each lane, and stacking your passive as much as you can, try get Dragon as often as you can, always have it warded, always contest it.
Since you do heavy burst damage, I recommend you setting your passive target to the squishiest, pre-team fight and then focusing them, even if you get in the middle of the fight, its okay. If you kill them flash out and ult if need be. Kindred is extremely helpful when tower diving, if you are 100% sure you can get a kill or two in a dive, do it and use your ult appropriately.. Not much for Mid Game.

By now, if you have your Runaans, you're highly likely to win team fights, After a team fight and at least 2 of their teammates have died, I highly recommend your team getting Baron, because of your % damage, He will die fast and the buff is very very good to help push out a few towers quickly.
If you see someone trying to split push, it is your job to go kill them asap. Set your passive target to them, and wreck havoc.
By late game, the most stacks I have had was 32 stacks at 47 mins, and believe me.. They are the most important thing to focus on.
I don't think there is much more for me to talk about in late game, you're already likely to win.

Sorry that it is a screen shot, The image was too big to upload :D
With your whole team, you have have 5 pink wards and 15 greens, I recommend having them placed in all these spots to make sure you have optimal vision

If you have chosen to read my guide, I am very grateful to you and hope you recommend it to others. I put a lot of effort into this, so I can help others play this champion well.
Hope to see you in the fray.
Ign: Quasla (Oce)