I got it from an eBay bid and considering the money that I paid for it, it was a high value purchase. I was using an Ampeg PF350 so I loved the things that I got from the PF800, like the built in compressor (very useful for me, a non experienced slap technique player) and the power that obviously gets noticed as soon as you're tweaking the knobs.
However using the treble and low boost buttons was not add I expected because it doesn't only boost it but shapes the tone completely into something more plastic. Maybe for some genres is OK but for me playing jazz and 50s to 70s rock/rock&roll was a bit disappointing.
Long story short, is was good with EQ almost flat and getting all the sound shaping from the Bartolini 3 band EQ built in my bass. I sold it this past week since I got an SVT Pro 7 and a Markbass.
Ampeg PF-800 Portaflex
Class D integrated 800 watt bass amplifier