Get the stickies, and get a boomstick or similar barrel. The stock barrel is garbage. Get a revolution or equivalent, or you will outshoot your hopper.
The rate of fire on this thing is ridiculous! the gun is great, aside from a few problems when i first got it (just had to get used to it).
The stock barrel is gross, get a rifled barrel (boomer or similar would be best). I broke a lot of paint when i first got the gun, due to very high velocity, but that got taken care of in time. The instructions were complicated when it came to changing the rate of fire, it was easier to just monkey around with the dip switches. And it took an act of congress to change the freakin' 9v battery on this thing.
This gun is awesome, i scared people the first time i started blasting. Pretty quiet (not cocker quiet, but quiet enough). With this marker and some practice, you can hold your own against anything out there. You can find one online for around 300 beans, which is cheap for what you get. Plus! flip it upside down and start ripping, you can make em duck for you.