It's just too slow.

I was thinking about to buy it too last weekend from jr.com, which had $15 off coupon. 

I didn't buy it because all review say it's slow, start up time is slow, shoot to shoot is slow, and continuous shoot is also slow. 
So, overall, I would like get at least NEX-5 series. Current NEX-5R is not fast for the continuous AF. It implements 
the similar hybrid AF like Nikon V1/V2, but its AF is still slower than V1/V2. I will wait for the next version NEX-5 series 
when Sony has better AF system.