A good buddy of mine is an endorser for these basses and he loves them. He does a ton of Jazz and Broadway show work in NY. Here's a Youtube vid that he did: Steve Millhouse with Xotic Bass XJ-1T 4-string & 5-string - YouTube. IF you really want to hear a bass, you should hear his upright. He bought it from Rufus Reid about 9 years ago and it's the bass that Rufus used on all of the Dexter Gordon and Jack DeJohnette Special Edition albums back in the 80s. I won't tell you what it cost, but it was more than 99% of your cars. What I can't imagine is how good the bass sounded that allowed Rufus to sell it. I guess the story was that he had a wealthy student who could no longer play bass, so Rufus bought this even more insane bass, but Steve's upright will make a room shake when he hits the low E with no amp! I LOVE hearing great upright players. It's such a great sounding Ax, expecially when you find a good old one!