I have a Rokkoman and I love it. I bought it 2nd hand in 1991 and don't know how old it is. However it was always a bugger to tune, so a few years ago I asked a luthier to have a look at it - when I took it to his workshop one of his blokes took one look and said "ah ha" - he knew the problem straight away.

Apparently it is a copy of a Martin (don't know which model) and the original Martin guitar had the bridge a tidge too close to the soundhole. When the Japanese copied the design they made the same mistake. One new bridge later (in the correct position) and it tunes and plays like a dream.

I'm not a very good player but this guitar even makes me sound good.

Cheers
JennieG