I have two CPA rifles; the first is a Pope-style .32-40 and the second is a .22 rimfire in silhouette rifle configuration. Both have half-round 28" barrels. Both are very accurate. With my Paul Jones 200 gr. bullet, I have fired 5 shot groups at 200 yd. of 1 inch (need very calm air to do that, because I'm not that good at reading conditions) in the .32-40. My .22 shoots inside 1" at 100 yds. with quality target ammo. All testing with Unertl or Lyman target scopes.
The triggers on the CPA are as nice as any I use.
I know several people who have silhouette rifles. Most are happy with them. The larger calibers seem to have a tendency for the barrel retaining screw to loosen after extended firing, and a couple of people have Loc-Tited either the retaining screw or the barrel threads.
The silhouette calibers tend to have longer throats than many other rifles, so I'd advise very careful discussion and specification of the throat when you order a rifle.
Standard stock wood is high-quality, straight-grained black walnut. The extra-fancy American walnut is generally nice, and the extra-fancy French walnut is VERY NICE and the cost is reasonable.
If you buy one with unfinished wood, spend plenty of time shaping the stock. In my opinion, many people leave far too much wood in the stock, with a resultant clubby look.
Clarence