6 stars out of 5.  

I was so surprised by this disc.  It is fantastic! 

There's a few holes where I need a disc to go straight and hook only at the end.  My previous discs I'd use on those would have been a Ghost (Roc), Zone, Warrior, Aura or glow Pathfinder (not the others, they're too straight).  I didn't think I'd ever find another disc comparable to my Pathfinders that have decent glide and still fade at the end.  The Kotuku, despite its appearances of a slower disc, due to it's higher (thicker) profile and small bead, glides past the Pathfinders and has better fade.  Into a headwind, on a short tee, it will go straight and still have some fade at the end.  It handles a headwind better than my brand new CryZtal-Flex Zone.  

Very reliable flight.  For when you've progressed just past the beginner stage.  Intermediates will love this disc.  

 Highly recommend. 

RPM's flagship midrange, flies more overstable than a buzzz and takes torque much better (so much better for FH and flex lines), but isn't so overstable that it dumps out of the air after 200ft, it still has a good amount of glide.

I have this in both Atomic and Cosmic plastic, and the flight is similar to both. It is a nice complement to my Emac Truths. The Truths are pretty straight for me with the older baseline ones having a bit of turn. The Kotoku on the other hand has almost no turn and fades hard at the end. But the first part of the flight is straight, so it is not a meathook. But it does not go as far as a Truth (or Roc) and is more for more control or for headwinds.

Slightly more overstable than: Fuzion Verdict

Less overstable than: Justice/Mutant/Prodigy A3

Someone with more power than me (I throw ~325 max distance) should still be able to throw this with full power and not worry about it turning over. It has plenty of torque resistance for forehands as well. 

I honestly believe this disc should be in every persons bag.  For a beginner, it will be an overstable midrange and you may need to grow in to it.  For intermediate players (Myself), it starts as a overstable midrange and beats in to a straight flying midrange with a reliable finishing fade.  For Pros (Re: Drew Gibson), this disc will go very straight and finish with a smaller fade.  Feels amazing in the hand and kicked every Roc out of my bag two years ago.  Cosmic is my personal favorite plastic followed by Glow and then strata.  Atomic is great too I just dont like atomic for midranges (personal preference).

Excellent stable to overstable mid existing right inn the Goldilocks zone of beaded and headless mids. The microbead is unique and feels excellent. Plenty of glide for a reliable S-OS mid. Might start as a 3 fade but 2 is about right. Would recommend!

This is the overstable midrange that everyone needs in their bag. The plastic feels amazing and the rim is very comfortable (comparable to a Roc3). I have a metal flake cosmic and it's pretty beefy, but with a full power throw will stand up to flat and glide forward before a reliable fade at the end. I also have a strata Kotuku that I'm beating in and it was much straighter out of the box with the same reliable fade. I plan on cycling these. I love the reliable flight, feel, and awesome plastic. Big thumbs up for the Kotuku!