I had an used Affinity Jazz once (a 2007, I think) as a traveling/beater bass. The only issue I had with it were the crappy closed-box tuners. They were a bit weak and creaky when you ramped up the tension. Otherwise, it was fine. Sure, it wasn't the most powerful bass in my collection, but I only traded it in to go towards another purchase, not out of any dislike for it.
The newer 2013 Affinities now have the standardized Squier open-gear tuners. Good on them for making a notable improvement of their value line.
Aerodyne Club #47
Fender Owner's Club #18
Fender Blacktop Club #13
I felt a great disturbance in Las Vegas…as if thousands of Elvis impersonators cried out and then suddenly left the building.