Things I liked: Does what it's supposed to do, fit my kirenex nicely.
Things I would have changed: Like my stock battery that originally came with the gun this battery doesnt seem to last hours and hours for extended play, I end up charging it full 2 more times after the initial charge for a long hard day of play. I would recommend a spare battery, at least for a gun the size of the kirenex.
What others should know: Ya get what you pay for, so if possible, get a battery with a higher charge capacity, other than that this is your basic 2.5 hour play battery. All in all, I wasnt overly impressed and I wasnt overly disappointed in it. Its average.