I've had mine for several months now, and I'm really loving it.
I've had a few minor niggles, that through trial & error I've managed to sort.
My thoughts (and based solely on my experience):
First of all, in its stock set-up, and using 0.45s it will shoot straight up to around about 65m, but lack the lift for anything more, despite what I've seen online.
It shoots very well up to that point though.
I bought some of the modify H nubs to improve it, and they definitely helped with lift.
However, one problem I noticed is that it would shoot lovely in the morning, but once lunch hit and warmer temperatures my accuracy would take a nosedive.
I tried out a few different set-ups with varying performance before eventually settling on the original style bucking but in 70º (The standard is 60º I believe), paired with the blue modify nub.
Maximum confirmed hit I've had with it so far has been 92 yards, due to summer overgrowth at the site I've been using it at, getting a clear line of sight has been a problem, so further may well be possible.
This has seemed to have sorted it, and I've run it all day for a few games without issue now. (Fingers crossed ?)
Barring those initial issues, it's been absolutely wonderful, and probably to be expected, much as you would if you were building or upgrading your own, so not big deal I guess?
It's got a fairly hefty initial price tag, but compared to what I've probably spent upgrading my VSR/T10/T11s etc. I'd say it's come out much cheaper at the end.
A new bucking and nub and it's shooting at least as well as my other, older rifles.
The only other thing I would consider doing to it is finding a new piston to make it as quiet as possible, once such things are available, but that's purely preference and not essential.
View attachment 91722
View attachment 91723
View attachment 91724