I noticed this too. Go to:
"Settings" --> Under Wireless Networks "More" --> "Mobile Networks" --> "System Select" --> What options do you see here?
My Verizon G3 was set to "Global" by default. I think network switching performance has improved since I set it to the domestic mode "LTE/CDMA". Maybe your phone has something similar?
I'll echo the good and bad others have mentioned.
Display: gorgeous, but QHD is not noticeable, and sharpening is overdone. Outdoor visibility is fine despite what the reviews say.
Speakers: better than the G2, but that was an easy mark to surpass.
Design: grand slam home run; this is what a premium plastic bodied phone should look like.
Size: A little too wide for comfort for my medium sized hands, but that's a tradeoff for real estate. They still packed 5.5" into the smallest possible chassis.
Camera: Near the top of the Android pack, but still not iPhone quality.
Software: LG did a great job here. It feels like a very light skin on top of Kit Kat.
Another "fix" I should mention is that LG set the default animation speed far too slow, making it feel like it was stuttering/being sluggish. I enabled developer options, then set the animation speeds to 0.5x; feels fast now. Another option would be to use a solid launcher, like Nova Launcher.
Battery life is one solid day of heavy use, or two days of my typical use.
Just picked up the G# for my wife and myself. Loving it so far. I am coming from an HTC Evo 4G LTE, and she is coming from an Samsung Note 1. My family nearby has various phones from the iPhone (from 4 to 5s), Note 2/3, and Galaxys 3/4/5. So I've had a lot to compare against.
For my wife, the performance of the G3 is huge compared to her Note 1. It was one of the original big screen phones with too small a cpu for it. As such performance on the original Note is not so great. Especially since she liked to customize the crap out of it. Which made the performance suffer even worse with all the little animation crap she had packed into the phone.
As for myself, I wasn't as hurt on performance in terms of apps, although I barely added anything to my phone. I did notice that even with the little I did put on I did nearly max out the internal storage available for apps. Which only a whooping 6GB is "available" on the Evo 4g LTE for apps and most of that is used up by log files. Which leaves measly realistic amount of 1 GB for app storage.
My problem with my phone was mainly service related, Sprint SUCKS balls, and the camera on the phone was absolutely atrocious. Sure it had better very low light pictures, but comparing one slightly less bad picture to another is still stupid. I didn't use the camera that much because of the crappy pictures, but I was finding myself more than a little pissed at the shitty pictures it consistently took.
My wife's Samsung Note took pretty damn good pictures at least and left me a little envious of that.
So we both had our reasons for switching phones. After looking at everything out there and coming out within the year, the G3 seemed like the best choice to me. Although I was willing to settle for the OnePlus One had I been able to actually buy before now.
Most of the pros and cons listed by jpeyton are basically what I've encountered. I have noticed that if you lose 4G you drop to 2G and it takes awhile to get back on 4G for some reason. Not sure why. I am not exactly a fan of the plastic body though, but I that's why I buy a case. My wife is a clutz and drops hers all the time, and I have done it once or twice with my Evo. I had a case on every time I dropped mine and it was in an Otterbox. My Evo looks brand spanking new still despite over 2 years of use. My wife's phone was never in such a protective case and it shows. The plastic around all the edges has cracked. The screen has light scratches. The back looks like ass. To be fair, they never made any good cases for the Note 1. Not even an Otterbox. So the only cases she had to buy are mostly those plastic snap on the back type that break very easily and don't really protect much at all.
So even though the G3 has a plastic body, I would still buy a nice case for it even if it had an aluminum unibody like the M8 or iPhone. Everyone I know stills buys a case for those phones which basically means you are going to be holding plastic in your hands and aren't holding that metal body.
I will say that Clash of Clans drains the shit out the battery on the G3 pretty damn fast. Then again it does that with every phone I seen play that game. 100% to 0% in 2-3 hours of playing on most phones. Not sure why that game is such a drain but it is. Anything else I play will last 5-8 hours.
Basically loving the performance, the camera, the connectivity, and the screen. I don't mind the bigger phone (even bigger with the case on) and my wife is certainly used to it with her old Note 1. For reference, the Note 1 is still bigger by a significant margin than the G3.
If anyone is curious, this is the case I bought for the phone.
http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1
Which I am liking very much. As good if not better protection than the Otterbox. Smaller size than the Otterbox. It's also significantly less expensive too!
With all the possible choices (Samsung GS5, Oppo 7, iPhone 5s, HTC One M8, Xperia Z2, OnePlus One, Nokia 930) out now or coming out, the G3 to me looked like the best phone to buy.