Just want to bump this thread up and see how you are all feeling/doing with your ASR's a year later.
Torturing myself trying to decide which PCC to purchase... I am a re-loader so the versatility with ammo/calibers is keeping the ASR on my radar.
I think they're great, but personally I would buy new from a retailer that you'd trust to handle any potential issues directly, without having to go through warranty. Early versions apparently had a few problems. Or if you're buying used, get one from a seller you trust who has used it enough to prove reliability. Or if you like to tinker, you might be able to handle any issues yourself.
They handle very differently from the other PCC options. If at all possible, I'd visit a store with several options available so you can see if you have a preference. Not everybody cares about this kind of thing, but the ASR is much lighter than most other option, and the balance is much more neutral. The grip is different without having much of a forend to hang on to, but I've adapted to it. I chose not to add a forend extension because I didn't want to alter the weight and balance. It's fine as it is, just different. There's room to mount a red dot and a light, and probably a magnifier if you want.
I had to tinker with mine (early version) to get the barrel nut to stay tight. After that, reliability has been perfect with all kinds of reloads (45ACP, mostly RN and SWC).
The caliber swapping capability is great in theory, but availability of the kits has been poor. I wouldn't count on it as a feature, unless you line everything up before purchasing.