NEX Autofocus speeds in real life

Hi,

Most reviews, and indeed users on here, complain at least a little bit about the autofocus speeds of the NEX cameras compared to other CSC cameras and to SLR ones.

In real life though how bad is the speed? I am not expecting to be able to photograph razor sharp sporting images or racing cars but will it be unable to take clear photos of say my daughter at a playground doing anything other than sitting still?

How do people find it in real life?

Ta

(Aware the next NEX 5R will probably be an improvement)