I was nervous about buying an expensive acoustic guitar, let alone a koa guitar, without playing and hearing it first, but my Sweetwater rep (John Short) assured me I could return it with no hassle if I wasn't satisfied. I expected the guitar to be beautiful and it didn't disappoint - it is no exaggeration to classify it as a work of art. I expected the guitar to play easily, and again, it didn't disappoint - it plays as easily as a properly set-up 6 string. (Not an easy task on a 12 string). But as to the sound - it turned out I had no reason to be nervous about the sound - it is absolutely amazing! Out of the box the E and B trebles sounded a bit thin, but once I tuned them so that they beat very slightly, the treble sound exploded. The intonation is spot on all up and down the neck and the sound is huge, bright, full, with deep basses and clear, ringing trebles. I have almost 15 guitars in my collection, including Gibsons, Fenders, Martins, Gretschs, and other Taylors, and my wife always renders an opinion as to the sound of the guitar. When I first played the K66ce for my wife she got tears in her eyes. I was afraid that she hated it and was angry at me for spending so much money. But, in fact, she said the tears were because the sound of the guitar was the most beautiful sound that she ever heard from a guitar. She has heard all of my guitars many times (since I play almost every night), and I've never seen that reaction before, so I'm sure the sound is amazing. This is my first koa guitar, and the koa should continue to open up over time, so I expect the sound to get even more impressive. The string pairing, octave-treble-first, bass-second, took me a little time to get used to, but I don't have any problems with it. (My Ric and other 12 strings I have owned, are bass-first, then treble-octave). I loved the sound so much that I didn't even plug it in to an amp for the first two weeks, but when I did plug it in the sound was still fabulous. This is a very expensive instrument (by my standards), but assuming the instrument will hold up over time, I consider it to be an investment that I can enjoy by playing regularly, and I think it is money well spent. It really is an amazing instrument.