First Crack built. I've built all sorts of stuff on circuit boards, this was my first point to point project. Instructions were fantastic except for their uncanny ability to say Connect and Solder the first time then just Connect when rereading them after soldering something I shouldn't have. All good in the end though.
Resistance checks identified one unsoldered wire - it looked soldered but moved when I tugged it. Voltage checks all good first time.
Tested with some £5 Sony headphones which sounded about as you would expect. The HD6XXs sound fantastic! They are effortless where through the Topping DX3 Pro+ it was always struggling to drive them.