The Burris FFII is a much better optic at a lower price point.
Not in low light, at least not to my eyes.
And, yes I have a couple of those FFIIs also, but due to their lower performance, (per my eyes), in low light, I now use them on rimfires and target rifles only.
That said there seems to be more disagreement on optics than any other subject on the campfire. Everyone seems to see things differently, so it's important to experiment and decide for yourself. Try a VX1 and if you don't like it you can sell it to someone in Classifieds w/o losing much money. Ditto for the FFII.
My comments are in regard to the latest, post 2012 version of the VX1.
