Yes, and it's not even as novelty as it sounds. My Piezo Explorer (they were called Shadow Explorers after the name of the - German made btw - piezo system) has more brawn, mids, bass, presence and "even string to string response" than my reg Grabber pupped one. Forget the sterile piezo sounds you know from alder, ash and maple basses; maho and piezo is a warm combination. The only thing that reveals this baby as a piezo instrument (looks excepted) is the 3D "smack in your face" direct quality of the tone. They also brought out a Q-90 with piezos as a lined fretless, fretted models might possibly also be out there.
Uwe