Hey I have a Broxa and it works really nicely for me, indoors, outdoors accuracy leaves much to be desired. Also in anything less then 0 degrees the broxa will die in less then 10 minutes. So if you happen to live in Canada, e hem, I would recomend the G&G as the metal gear box and better battery will help you to prevail. Hope Ive been of some help.
I fully intend to buy a G&G M4 for the outdoor season, but for indoor I love my Broxa