I built this kit a while back and it is astounding.
I upgraded the potentiometer to a TDK 2C-P and also added Mundorf Oil capacitors.
While maybe not C&C it is a great buy for the price. I have only used as a headphone amp so can't comment on how it sounds with speakers. I have ran it with Audeze LCD2 , Hifiman HE500, and Beyer T1 and pleased with sound with all these headphones.
The kit was a breeze to assemble maybe 2 hours total if you can solder. Instructions very easy to follow.
Here is a pic. Since this was taken I am now running PSvave and Mullards as my tubes.
