Ok, I did
to a Nex 5n, I considered it as an important/real(not significant) upgrade.
You will enjoy it. Nex 5n technology will last for at least another 6-12 months before an important model( ) supersedes it. In terms of light light performance it is comparable to the much acclaimed Olympus OM-D.
I consider Nex 7 in a different class, because it is far more expensive. Will F5 be an real and important upgrade to 5n, the spec. is yet to be released???