I perfed one of these, it didn't work, and I decided that debugging such a cramped circuit on perf was a nightmare. So I got a couple of PCBs made, made one up, and it worked on first power-up.
This thing is so much fun. The effects loop I added (thanks to Jimosity) is awesome. I have a Ring Stinger ring mod in the loop, so each repeat is more ring modulated. A lot of settings of the RS are too noisy with this approach, but when I get it dialed in right, and figure out the magic notes to play, it becomes this insane alien arpeggiator sound.
I've never had an analog-style delay before, only purely digital, and I have to say I really like the sound, even if this is not actually analog. Cranking the repeats and fiddling with feedback time, then trying tremolo in the loop, I can get all kinds of weird synth sounds without even playing anything on my instrument.
Nice job, Slacker! Also thanks to John Lyons for the nice boards - after perfing a ton of stuff, it's so luxurious to build on a really nice PCB.