That is the G&G 416. G&G just give things silly names for licensing reasons.
G&G's blowback mechanism is different from all the others, it uses air pressure created by the general action of the gearbox, so it doesn't put extra, unnecessary wear on the key parts of the internals, which is what almost all other blowback mechanisms do. Either the person who gave it a bad rep didn't know this, or they're one of the people who has a massive dislike for one company or another for no particular reason.
Anyone who has owned a G&G will swear by it, I can guarantee it. There's even an example from someone further up the thread. I own a Gen 1 G&G Top Tech MP5A4, I've had it for over a year and it is without a doubt the most flawless gun I've ever owned. I've had a G&G M14 that was out of this world as well. I'd say go for G&G, if you're on a budget and don't mind plastic, then you could get a plastic bodied gun to keep the costs down as well.
I can't think of a single thing to say about G&G that's bad. They're probably the best airsoft companies there is at the moment. Anyone that has a bad opinion of them probably gained it a few years ago when they were a pretty poor quality company, they've seriously stepped up their game since then. I'd compare them to G&P (if not even rate them more highly), which are one of the biggest names in airsoft.