Mine arrived a couple of days ago... It's got potential to be a decent factory gun, but they definitely dropped the ball going with the VF. The "self-headspacing" bolt is a novelty in my opinion. I can easily depress the spring with my hand, so I have no idea how it's supposed to seal under a heavy does of BH209.
Inserting the VF modules by hand is very challenging. If you think hooking brass modules in a rem 700 bolt is hard, you aint seen nuthin yet. Definitely better off using a tool to insert them.
I haven't had time to size a bullet for an exact fit, but a .4508 bullet I had here made it about halfway down before I had to gently push it the rest of the way through with a ramrod.
I think I've pretty much got the concept down of how I'm going to convert it over to the Arrowhead Gen2 system, but it's going to take a little bit of time to get it all ironed out.