I was lucky enough to snag it used I think 3 years ago. I traded an older four wheeler for it. It already had the load development done for me by the first owner, but it shot .2 to.3moa as long as I did my part. But because of that I can't attest to load development difficulty. The build quality was the best I've ever owned. In Winter 2017 (end of 2017-Into 2018) I used it to take a nice big bodied cow elk in northern Colorado at about 650 yards. I think when I sold it there was roughly 600 rounds down the tube and it was still at least half moa accurate at 600 yards on paper targets. Maybe could've been better but I don't claim to be a perfect shot. Honestly probably would've been better if I adjusted the seating depth to account for the throat wear.
As to the build quality it was easily the nicest gun I have ever owned. I had to sell it along with at least half the guns I owned in spring of 2018 when I inherited my dad's ALS medical bills after his passing. Could've paid for them with the "estate" but the estate was his home and I was/am not willing to sell that for sentimental reasons.
I just tried to find photos of it to add to this post but there's thousands of photos on my computer and when they uploaded they got mixed all out of order and I can't find it. Beautiful gun though, his pictures on his website don't do his guns justice. If I find photos of it or the groupings I'll add them, I think I still have a target from it in my shop to take a picture of later today or tomorrow.