Yeah, the key point is that for the price you pay to get one, you'll be holding your own fighting against people who have guns that cost 3 times the amount.
They are ludicrously good, for the price you pay. The value for money is untold, considering you could buy a Systema M4 for £800-1200, you'll still need to upgrade that in order for it to perform at the level you'd expect from the initial cost. But with a G&G Combat Machine, an M4 made of plastic costing barely £100, you'd pick it up and fire it down a range, expecting it to be shit because it's cheap and made of nylon fibre.
But, if people are honest with themselves, if no one told them otherwise, a lot of people would expect it to be a gun worth between £175 and £300. When you can get one for as little as £100.
I honestly think G&G could sell them for over £150 and they'll still get good reviews and still have people saying they were good value for money, because they really really are.
From first hand experience, when I set up my airsofting society at Uni, 90% of the people who signed up and never been airsofting before, so we all went, 3 times, sorted out everyone's UKARA etc etc.
Three of them all bought G&G Combat Machines for £140 from Zero One, their performance was nigh on identical to a G&P full metal M4 CQB that I paid £240 for.
I felt like I'd been conned. They paid £100 less, for what was essentially the same gun made of plastic. I had to confirm with them that they'd all bought the plastic one as well, the weight is quite surprising, they look very convincing, pretty much the only obvious give away is that they don't get as hot as metal when you leave them out in the sun. Since most people wear gloves when they're playing, they'd never even know it wasn't a metal gun.
In short, anyone who says they're bad must've been dropped as a baby. Or have some sort of illogical grudge against them.