I own eight acoustic guitars, and one irish bouzouki of varying quality - all good to irreplaceable - but this is my first ukelele, bought for a three-year old. I can't find a fault with it.
Sound - being unfamiliar with what a really expensive ukelele sounds like it's difficult to say - it sounds fine to me
Intonation and tuning - not only is the intonation good all the way up the neck, the tuners seem to be of better quality than the grovers on my Taylor 810CE, the (refit) waverley butterbeans on my '64 Gibson Country Western, etc., etc.
Build quality, finish, design - the design just says 'pick me up' - the paint job and joints are good and everything is well-finished.