I had one...sold it almost immediately.
Solid design, pretty good goose-neck, very easy to locate. Clear, precise; responds well to transients and high SPL. Sounds pretty good on high toms, decent on low toms...crap on snare.
Extremely high self-noise...29db. Usable live, impossible for studio work.
The ADX-90 has been replaced by the identical F-90. Its the same mic; Audix just changed the name so they could offer a clip-on condenser in their Fusion series.
