I own one custom-built ukulele, made by Bradford Donaldson. I had seen things about his instruments for a while, and many of the members here on the forum said great things about the instruments, and one woman I knew of from the textile world had one of his ukes that was built specifically to accommodate the female anatomy.
When another member told me that Bradford's ukes weren't very expensive for a custom built, I contacted him. And we communicated. First off, the price was low because he built as a hobby. No pressure to finish by a certain date, he would not take a deposit, and when the uke was finished, he'd let me know. I would then pay for it, he'd ship it to me, and if I didn't like it, I'd send it back for a full refund, minus shipping cost.
My desires were simple: Sustainable north-American hardwoods, contrasting binding, personal sound hole, cut-away, pick-up, PegHed tuners, and - if possible - a couple of inlays in the fretboard, headstock, and one on the back of the headstock, that would make it 100% personal. Everything else, I trusted his judgement.
He did it all, and it is my favorite instrument. Great sound, great feel - Sarah Maisel asked to play it at one of the Napa Uke fests a few years back, and liked it very, very much.
Bradford isn't making custom instruments anymore - I was one of the last that he made one for - and I will always be grateful for my timing. It was worth every penny, and worth the 13-month wait.
-Kurt