I had a KoAlana concert once upon a time. I thought it sounded really nice and was nearly as easy to play as my Pineapple Sunday (probably the easiest player I have), but the workmanship on the fretboard left a lot to be desired. Some of the higher frets (I think they were like the 12th-15th) sticked out from the fretboard quite a bit, and one of the frets (I think it was the 13th fret) actually was lifted on the A-string side which cause the A-string to fret at that lifted fret even when I was trying to fret the next fret up. Frankly I was kind of surprised MGM would send something like that to me. Since it was a cheap uke, I just tried to fix the issues myself by trying to pound in and sand down the lifted fret and sand a couple of the frets that sticked out.
As a whole, the KoAlana has a vibe of a KoAloha knockoff (which it essentially is. Some call it an "authorized knockoff"). It has the details of the KoAloha concert, but not as "sharp". For instance, the headstock of KoAloha ukes have sharp definitions in all the edges such as pointy crowns. The KoAlana, on the other hand, have all the edges rounded. It almost feels as if the tooling die wore out so all the sharp edges got rounded. Obviously these aren't made with a tooling die, but that's the impression I get throughout the uke.
But, it is cheap (when it's available), and the sound is very good. If you get one with decent fret work, it's a keeper.