So went to GC to buy my 12 year old son a guitar. He wants to take lessons and learn to play after messing around 5 years ago with a mini Strat he got for Christmas. So we were looking at getting him a Martin OOO 15M. I wanted to get him a good guitar that was easy to play and one that if he gave up I would like to have in addition to my OM 21. He liked the 15M we tried and it was nice but it’s voice was not very complex and lacked overtones I hear from my Martin and others I’ve played. While we were there they had a OMJM, the John Mayer signature model. Now I do not really care one bit about Mayer and really have never heard but maybe one song of his on the radio once but the guitar was so nice looking I asked them to open the glass case and get it out for me. Well not only did it look spectacular, solid Engelmann Spruce top and East Indian rosewood two piece back and East Indian rosewood sides, ebony board and bridge, MOP inlays and abalone rosette, but it sounded like a choir of angels singing when I played it. So in the end my son is now rocking my/his OM 21 and I will be picking up the OMJM Tuesday when they get a brand new one delivered for me and I will post pics then.