I had a Sei J5. good lord was it great to play and hold. Probably the nicest I've had. Stunning build from the sunken bridge to the olivewood top he folded over the arm contour. The details were hand made, you could just tell. Did it sound like a jazz bass.? Nope. That wasn't a bad thing. It was just a beautiful instrument and you could tell just by picking it up. The bass in question is above.