I've had the Joe's PH from Russell Moccasin for just over a week now, and I'm genuinely amazed. The model is currently out of Russell's catalog, but the Safari is close enough that anything I say here should translate. Mine is the stock build, no customization, in sage chamois.
Ordering. Order to delivery was 4.5 months. I emailed Russell for a status update at the 3-month and 4-month marks, and Luke, the CEO, personally responded to the second one. Great experience overall, exactly the kind of touch you hope for from a small American maker.
Build & Leather. The workmanship is second to none: neat, detailed, just about perfect. The sage chamois manages to be durable while staying flexible and soft right out of the box. The Vibram 360 sole has a low drop, so I can feel almost everything underfoot, close to a barefoot-shoe sensation but with real boot construction around it. They're also remarkably quiet to walk in, which is something Russell markets and actually delivers on.
Sizing & Fit. I'm a 9.5D on the Brannock and went with a 9D. I didn't think my feet were particularly narrow, but apparently they're skinnier than I gave them credit for, so I picked up a pair of Kelties from Russell in the same leather to fill the boots out. The leather varies a bit batch to batch, but the match is close enough. Lacing technique matters more than you'd think; after watching Russell's video on it, the fit dialed in even better.
Break-In. About a day. No joke. For comparison, my Grant Stones still feel like they need more breaking in after years of mild wear.
Use Case. Full disclosure: I wear these around town, which isn't really what they were built for. The Joe's PH / Safari is a hunting and outdoor boot at heart, so I can't speak to how they perform in the field. But as a daily town boot they've been excellent.
Warm Weather. Living in SoCal, the single vamp has been a pleasant surprise, almost cooling in the heat. I haven't tried a double vamp, but for our climate the single seems ideal.
Verdict. I love these boots and can absolutely see another pair in my future.