I used to own an Ashula, and the concept in itself was very cool. I tuned it like an ordinary 6 string bass most of the time, and had some fun with it. However, after a couple of months I sold it. My main gripe with it was that I found the string spacing to be too wide. I'm used to playing 5 string Wariwick Thumbs, so I guess that had something to do with the problem. Also, I found that the output from the fretless side was lower in volume than the fretted side. Dunno if that is a common problem or just an issue with mine...