The 6015 is a fine guitar, built a bit hefty (braces appear to be of a hardwood, and not at all like lightweight quartersawn spruce of the finest guitars). The 6015 I bought used has a perfect neck angle, and the top sits virtually flat, so the bridge and properly situated saddle support the strings at a really playable height. Aside from excellent, low action, the factory nut and saddle achieve nearly perfect intonation. A slight compensation I filed into the saddle for the B and low E strings brought the guitar's overall pitch accuracy to an A+. The tone of the guitar is not "better than a Martin D-18", like another comment I had read-- but for the price range it is an amazing guitar. Basically, the market won't pay all that much for an Alvarez branded instrument, since the brand is dominated by and known for low cost production models. This, and the 6010 are true "sleepers", and finished in an unusual "violin finish", they are a pleasure to own.