Worth upgrading from Nex5n to Nex6 for focus speed alone?

I'm pretty happy with the 5n but do find the auto focus can be slow sometimes (especially with the SEL 50mm 1.8).

I'm interested in the Nex6 due to it's hybrid pdaf/cdaf focus system.

Can anyone give an indication of what sort of difference the nex6 hybrid focus makes with compatible lenses?

(I know the 50mm is sadly not yet one of these)

My plan is to primarily use the soon-to-be-released 35mm 1.8.