Great player. rubbish performer :P
He's a lot better if you see him in his own right - I don't think G3 totally suited him, he's a much more reserved character than Satch or Vai.
His albums are really good, but he's famously obsessive about tone and, I think, the records often end up sounding too slick and overproduced.
Tones and
Ah Via Musicom are great, and the
Alien Love Child - Live And Beyond album is live and more raw.
For another fantastic player who doesn't exactly sound like Eric Johnson, but has some of that sophisticated blues-meets-jazz feel, check out Robben Ford. He's done
loads of albums, but the ones by Robben Ford and the Blue Line are a bit more accessible for rock fans.