Jg S-system M4....bad or good??

One of my friends has the JG S-System M4 and he says that JG sucks, I received my Jg G36c about 3 days ago and I love my gun. His S-System is no longer functioning, I think cause he over charged his battery and then when it wouldn't work took it apart to screw around with it and try and fix it. He says it's jsut a bad gun by a bad company. So what I'm finally getting to is that we need our argument settled. Is it cause he over charged it and took it apart or cause it's just bad craftsmanship?

ps: This was one of the rifles I was looking at before I got my G36 and the only reason i didn't get it was cause the M16 is over used! every one has them lol i wanted to be different, any way

thanks again,
theguywiththegun202

He screwed it up, or he got a lemon.

JG is just fine, it's your friend that is most likely broken, lol...

ya thats what i thought lol he isn't the most respnsible person i know hahaha