LOVE my Walt! Ordering process was smooth and dealing with him is easy as pie. He's a stand up guy who stands behind his work with no questions asked.
I actually got lucky and got a frame that he built for someone else that fit my specs. The other person changed their mind so I lucked into it. I've ridden that bike on (3) continents...as a hard tail, rigid, geared, SS, and now as a rigid SS with drops bars. I've raced it in Pisgah, England, all over GA -- on smooth buttery trail and rocky technical terrain.
Fall 2008 it snapped as a crossed a street at a corsswalk, no less. Head tube sheered straight off the rest of the bike. Walt did not question, he took the frame, apologized, was glad I wasn't hurt badly, and rebuilt it for me. Since the original frame was built specifically for someone else, he apologized that it just wasn't strong enough for me. Heck, I'm just glad it'd done all it had to THAT point!
I don't have experience with other custom guys, so I can't say they wouldn't do the same thing but even if I have the money for a Moots, IF, Retrotec, etc my next custom is coming from Walt.