Pros: Every single function works as it is intended.
Cons: I wished I had a need for a second one
I bought the 616 in the spring of 2013. The bad press from the early firmware issues drove the price down but all of the firmware issues leading to many of the malfunctions were corrected. In short us late buyers got perfectly functioning units at severely depressed prices. I designed my entire Whole House Audio around the 616. It works perfectly in every respect. I wished I had a need for a second one. Having been using it for two months, I can not find fault with it given its use for my main 5.1 seating area and two other zones throughout the house. I am happy to give up the better Audyssey for the sheer amount of features.