The 364 has a rich deep sound which is great for the Blues. Sonnyboy Williamson (or Rice Miller) used an Echo harp and the 364 has the same sound. It has a wooden comb and fun to play. This was my first harmonica that I bought about 15 years ago cause I wanted that Sonnyboy sound. You need a little more air to play it unlike a regular diatonic but the warm sound that comes out of it makes it worth having.