I played a concert uke of his at a local Uke club meetup, and, while pub conditions aren't ideal, I can say it was loud enough to hear and enjoy, and the neck was a tad fatter than usual, but in a good way, was nice for my short stubby fingers.
It had old cruddy strings on, with a wound C that looked all rusted out and it still sounded nice.
The guy bought it directly from Tangi so I'm not sure if this was a custom job or not, but I've not a bad thing to say about that uke.