ORIGINAL: goirish
I'm not sure exactly what that quote means. It could be a disclaimer because of selling spektrum so cheap. All I can say is I have 10 of them and probably 20+ in the club. No one has reported any brown outs or failure of any kind. All sorts of plane sizes are being flown on them.
Forgetting their reliability, which I am not disputing... I'm sure they work fine.
That disclaimer is a way of preventing someone from sueing them for false advertising.
It basically tells you that they are an exact ( visually ) copy... something that is technically illegal as it represents the product as being from a different company than the one that sold it.