I've had and used a Martin O-16 NY since 1974 and don't think I'd part with it for anything. Except maybe an O-17. They're just superb finger picking guitars. You would have to get used to a slightly wider neck though. I always have trouble making adjustments to the narrower necked Dreadnought models. The strings aren't where my fingers want 'em to be either on the fret board or the picking end.I bought a big old Guild to play when I was with the Powdered Eagle String Band. It punched out a nice bass but wasn't much louder than the Martin and the treble didn't come through nearly as clearly. Also remember, when you using amplification, you don't need a boomer.
Wally