I had p300 regenerator, stellar regenerator, Stellar Gcd, M700 monoblocks, dectet and other items. Purchased 50/50 new and used. Gear support was excellent and one time I had to send something in outside of warranty and purchased used, I was not charged for repairs or shipping back.
The gear served me well and the only reason I moved on, I wanted something even better (and a lot more expensive)