Interesting.
I started building Heathkits at 14 - still have my first one, a GC-1107 clock. It still works as far as I know...the shack has so many 24h timepieces in it that the clock is somewhat redundant!
All of mine worked on the first try. Like Eddie, I've also un-fscked quite a few of the things - either due to builder error or design fault. There are ways to make many of the legacy products better if you don't care for "stock".