Things I liked:The rifle is light and rugged. The fixed sights are nice and bright. The rifle is easy to cock. With the right pellets, the rifle can form extremely tight nickel-quarter sized groups at 25 yards. Things I would have changed:The rifle sounds like a creaky garage door spring while being cocked, and there seems to be a little wiggle on the rear fixed sight. The included scope is not great... I'd almost rather they just didn't include a scope at all and drop the price of the rifle a little more.
When fired, the rifle vibrates a lot with a loud "TWANG". Perhaps the vibration is more noticeable due to the low weight? The vibration also makes this rifle somewhat finicky; A good artillery hold and consistency between shots are absolutely critical to form any kind of group. I find that even slight variations on how I pull the trigger and how I position cheek will cause flyers.
Although it comes with a built-in suppressor, I feel like most of the noise from the rifle actually comes from the spring unloading in the body rather than the muzzle.
Overall, the rifle gives the impression of cheapness due to the seams on its plastic body and its light weight, but the actual performance of the rifle is very good - Accurate and powerful. Don't let my negative comments fool you - This is actually one of my favorite air rifles. What others should know:I'm writing this review for the .22 caliber version of the rifle, with about 500 pellets through it so far. Compared to my Benji Trail NP .22, the bore on the Silent cat seems slightly larger. RWS Superdome pellets fit loosely in the barrel and did not form very good groups, but Crosman Premier Domed pellets fit very snugly and formed great groups.
Things I liked:Lightweight, short break-in period, less hold-sensitive than my Silent Cat, quiet. Was forming 1" groups at 25 yards after only ~10 rounds with H&N Barracuda Match 5.53mm head size pellets.
Pyramyd air also includes the original steel spring in the package, with is pretty cool. Things I would have changed:As always, ditch the Gamo scope... I guess the scope is useful as a spotter at 25 yards though. What others should know:Rifle actually weighs in at about 5.5 pounds, rather than the listed 5.28, probably because of the replaced spring. This most be noticeable for most people, but it can make a difference on a multi-day backpacking trip.
I put a Williams 5D-GR peepsight on the rifle for maximum weight savings. I suspect the 5D-AG ( http://www.pyramydair.com/s/a/Williams_Diopter_Sight/2003 ) might fit too, since my 5D-GR is adjusted to almost its maximum height to hit the bullseye at 25 yards.
Although this rifle is less hold sensitive than some other springers, it is still hold sensitive. I get best results resting the rifle in my open palm and resting my elbow on the bench, using sandbags to immobilize my elbow. I also get good results in a sitting position. I get crappy results if I rest the rifle directly on the sandbag, or even if I rest my hand on the sandbag and the rifle in my hand.