I had a Denon refurb 3803 from DakMart and it was very good. No problems whatsoever but I wanted more power so I sold it and got a HK AVR-7200. There was a noticeable difference in power although the 7200 has it's quirks.

2xM80 VP180 2xQS8 2xM3 HSU STF3 LG 60PS11 Denon 3808 ATI 1506 LCR 2xATI 1502 Oppo BDP-83