This is my fourth Js model, i had two japan models: Js700 and the Js 2000 and the Indonesian Js24P. The Js100 i own is a white Korean model from 2004, it is supposed to be the best "cheap" Js ever made, i must admit that it is almost the same than the Js2000, i just changed the stock pickups for a pair of sh1/sh5 in white finish. I'm not into Joe Satriani things, i love his guitars but don't play his music, that's why i din't replace the stock pickups with Dimarzio Js signature pickups. I love this guitar, the Js series is probably the most cumfortable and useable model, very well balanced, nice body shape, you can play for hours without being tired. the tremolo is not the best, but it does the job if you don't shake it to much. A very good guitar a must have.