"I bought this gun back in Oct. 2016. Used it in two airsoft wars (I don't play as often as i'd like) and shot it in the backyard pretty often. It was my first GBB, and still my only GBB so far.
If you just want to see the pros and cons, skip to the bottom.
I absolutely LOVE this thing. When I bought it, it was on sale for 200 bucks, which seeing it going for 330 now, it was a steal. I use propane because it is ALOT cheaper than green gas. I also got an extra magazine because 30 rounds per magazine isn't anything especially when you're using full auto, though two mags still isn't enough.
I really can't say too many bad things about this gun. My biggest issue with it is accuracy. The first time I used it in a battle, we played most of the day, and I don't think I hit anyone with it. The most I did was scare them with how this thing sounds, and how fast the ROF is. My $75 CO2 pistol, and $100 Walmart black ops rifle were way more effective in getting kills. But from reading other reviews, people seem to have been able to make this gun ALOT more reliable with some simple upgrades which I do plan on doing eventually. But I think accuracy is really my only problem with it so far. I used it in another war a few weeks ago and actually got two confirmed hits from a fair distance away, which was great for me considering the luck I had before. The magazines have a switch you can use to turn the lock back function of the bolt on or off when you run out of ammo. This feature no longer works on either of my mags after I took them apart to clean them and wasn't as careful as I should have been. But thankfully, you can buy a little parts kit for the mags for 7 bucks so my mistake won't cost me much when I do decide to fix it. And I think the plastic part of my bolt is cracked. It looks cracked, but I haven't noticed any issues with it so I am not worried about it at this point. And considering you'll want to keep your gun oiled, dirt likes to stick in it if you get some on it, or drop mags in the dirt, drop your gun, etc. So just be careful there. I dropped a magazine into some sand when reloading, which is why I took them apart in the first place, and then had a bunch in the port where the gas comes out, and in the bb chamber. DEFINITELY don't want that in your gun.
SO, here are my Pros and cons.
Full metal except for parts of the bolt, but I'm pretty sure that can't be metal.
Very similar to a real gun. (compared it to an AR-15. Basically the same except for the gas part, and the bolt)
Can be field stripped like the real thing for cleaning
Great FPS (Never chrono'ed mine, but I know its got some power!)
Great noise (in my opinion)
Will strike fear into your opponents eyes (Especially when nobody that you play with has a gas rifle)
Accuracy out of the box isn't the best with mine, but it seems to be a common problem.
The paint looks nice, but isn't durable. It will scratch off, especially on the rails when mounting and removing accessories.
My mags no longer lock the bolt back, but that is my fault, and not a direct issue with the gun.
Price. $200 was great for this gun but personally, I wouldn't have considered it at all cause I didn't want to spend over $300 for something I really only use a few times a year. But this is still cheaper than some of the guns out there. (And cheaper than the $375 KJ Works Full metal M4 my friend got, which is also fantastic.)
Overall, I love this gun. I would buy another if they went on sale again, just to have two of them, and to rent out if someone wanted to use it. The pros outweigh the cons in my case. Hopefully yours will be as good as mine is. I clean and oil mine before every war, and periodically oil it during the war. I also make sure to put oil in the propane adaptor to ensure oil goes into the mag when I charge it, since propane doesn't have oil in it like green gas does. I use silicone spray that I bought from an auto parts store. same stuff I got on here, just different brand.
Thanks, and have a blessed day!