If memory serves, Chris Fitzgerald used this mic some time ago, but I couldn't locate the specific thread, so I'm adding this here.
I use this to mic my Chadwick Folding Bass for duo and jazz trio gigs, using an Audix CabGrabber instead of an H-Clamp (the cab-grabber is about $100 cheaper and just needs a little additional padding). I had toyed with the idea of mounting an inexpensive condenser mic for some time, and I finally borrowed an Audio Technica u873r condenser from a friend to try it out. I was pretty hooked on it after that for duos and jazz trio gigs, but I didn't have the $250-$300 for a new one of mu own. So I scoured Amazon and found the MXL606. The response curve looked as flat as I could imagine, and I pulled the trigger on a Warehouse Deal, just to hedge my bets a bit in case I didn't like it.
I need not have worried.
The mic sounds great, is solidly constructed and looks fantastic. For my bass, it worked best pointed directly at the treble-side bridge foot from below. Pushed towards the bass-side it got a bit more trebly, and pushed towards the treble F-hole, it was very bassy. Use that as a guide to what you want tone-wise.
The little carrying case will keep it safe when tucked in with other gear between shows, but the one thing I would caution here is that little mic clip. It's just a plastic clip, and when you're mounted to my Juzek which resonates at about the same pitch as an open A ( 55Hz or any multiple thereof) got a sympathetic buzz out of the little fellow, and try as I might, I couldn't tighten it up or get rid of it.
The solution was simple, though. I took a normal-sized, rubberized mic clip, and put a pair of velcro-wraps inside the throat of it, loop-side in, and slid the MXL606 in there. Fit snuggly, held the mic, and damped any vibrations running through the body of the CabGrabber, or just vibrating the mic.
All in all, a GREAT deal on a GREAT little mic. I would buy it again in a heartbeat if it was lost, stolen or damaged beyond repair.