Things I liked:The power of this rifle, in .25 cal, is phenomenal. The rifle is very comfortable, for me at 6'6" and 250. May be a bit on the heavy side for some. Things I would have changed:The rifle could stand a beter final machining/Q/A process. True to what others have posted the bolt is EXTREMELY hard to operate untill the gun gets a thorough cleaning/deburring and a few rounds shot through it. What others should know:Make sure you perform a thorough cleaning/inspection before you try and sight the rifle in. Seems to be very accurate with the JSB exacts. Tested with numerous other pellet styles/weights but they seem to be all over the target at 25 yards. Make sure you check the bolt chamber as mine had several burrs that were causing the bolt to bind and make the gun difficult to operate as well as putting a few minor scratches on the bolt.