The A9 is simply stunning, both as a technical achievement and as a tool for capturing fast-moving action. The silent 20fps continuous shooting mode can capture shots you would once have missed, and the AF system is complex but extremely effective. Bravo!
Completely silent 20fps mode; Fast and effective autofocus; No viewfinder blackout
Unbalanced with larger lenses; Shorter battery life than DSLRs; EVF is good but not perfect