mine was broken when it came in the mail. it shot one and 3 shots but i got it fixed for free so no big deal.
great fps and decent fire rate when used with 9.6 battery.
highly upgradeable (i have an m203, red dot, and a tactical light on mine)
broken when it came out of the box
the battery loads into the stock and the clips to keep the buttstock on broke off the first time i took the stock off to get to the battery. so i have to unscrew it now when ever i want to get to the battery.
2x the weight of a standard issued m16/m4 in the USMC or army.
in conclusion its a great gun and i would highly recommend it to any friends or family. the weight and battery are not big issues.
Rating: [4 of 5 Stars!]