This gun was delivered to my house a few days ago and it was very simple to put together. However, one of the screws that came with it was the wrong size, and the clip was DOA and didn't even fit in the gun. I had used it in a scrimmage against my friends (only three of which have quality guns) just single loading each BB in the firing chamber. Then, I noticed the every BB i shot curved to the right no matter which direction I shot, which rules out the wind, so I disassembled it and found that the hop up was slightly tilted to the right, which I tilted back. After that the gun was extremely accurate, and I hit my dad from 160 feet. Now that I have everything sorted out I am very happy with this gun, and love its high range. However my friends JG BAR-10 is far more accurate than this gun, and if I could have re-made the purchase I would have bought that instead.
In conclusion, I would say the good outweighs the bad in this gun, but it isn't the best gun in this price range.
Powerful, maximum range is about 300ft with .28s (you have to aim up a lot)
Easy to cock
Scope isn't needed
Well built body and internals are great except for my little hop-up problem
Accessory rail is picitinny not weaver
Clip could be better
Allen screw holding the cocking handle comes loose far to easily