SureColor P6000 / P7000 piezography users

Anybody out there using piezography inks and upgraded from a previous generation large format to a P6000 or P7000 (or larger equivalents)… What has been your experience regarding reliability and maintainability with the new SureColor printers? And have you found your prints (or digital negatives) different (better or worse?) then the previous printer?

Thanks!
Michael