When it arrived to me, I wasn't all that impressed with the sound. It looked like a million bucks and the workmanship was flawless, but the sound didn't really impress me too much. It was a bit thin and quiet. Now keep in mind that since the uke I got right before this was a KoAloha Pineapple Sunday, which is in a class by itself, it probably would have taken something truly special to impress me at that point. After a day or two, I changed the stock Aquila strings to some Worth BM's (Brown Medium). It made the uke sound quite a bit better, especially at the higher frets, where it made a really nice and extremely clear sound. I also noticed that this uke has some serious sustain. Where all my other ukes, including the Pineapple Sunday, would sustain a picked note for about 4-5 seconds, the Honu would easily reach 6 seconds or more. It also had a 1.5" nut width with very wide string spacing, which makes it an excellent uke for fingerpicking. The sound still seemed a bit quiet and thin, but I was much happier with it and determined that it was a worthy purchase.
A month or so after getting the Honu, I ordered some new Worth strings, which included some CD's (Clear Dense) that I have not tried before. I decided to try those CD on the Honu. These worked very well and I thought I liked them on the Honu even better than the BM's. While the tone with the BM's sounded very nice, the uke felt a bit "slappy" sounding. With the CD's, that "slappy" sound seem to be minimized and the uke retained a nice crystal clear sound. By that time, however, I had acquired a Kanile'a super soprano and was very much enjoying that uke and the Honu was not played much.
So it has taken me a while to truly apprieciate what I had in the Honu concert uke, but I'd say it's never too late to apprieciate your ukes.
Here is a sound file of me playing Blue Roses Falling on the Honu concert.