Contrary to the views expressed by some above, the only "high end" guitar I know on which I find the intonation jarring is a particular very attractive looking Taylor. I'm not a pro Martin bigot but I have only come across one Martin ever that I felt failed to measure up - an all-mahogany one which seemed to lack the characteristic Martin "ring". Played in comparison with other instruments it was plenty OK - it just didn't sound like a Martin.