Picked one if these up late last month, had to replace my phone which was starting to have trouble maintaining signal and would not receive calls at times. So far I'm more than happy with it, got it for free with Fido dollars, woot, apparently it took 6 months to become available, it was being advertised as a "New" phone still, but that's how crumby Fido is and this is a known fact. It was a toss up between the G3, M8 and S5, the M8 would have been $100 more and the S5 $350, again this is Fido being special or trying to gouge for the more popular phones.
What sold me was the 1440p display, it's just so damn crispy, and unlike the majority of people I don't particularly like the over saturated AMOLED's on the competitors, and side by side prefer the proper representation of white on the G3. Unfortunately the battery doesn't last as long, however I don't game on my phone and find the screen almost always readable on auto mode which will get me well over a day of use, if not 2 days at times.
Design wise I feel the G3 is far ahead of the competitors with it's sleek button-less face and edges, no more am I accidentally turning my phone off because of the power button being where I hold the edges of the phone. Sliding in and out of jean pockets is very easy, however while driving it can be a scramble to get it out of pocket for emergency purposes. Build quality feels high with very little flex when twisted or folded, minus the faux metal backplate, although this is not a concern of mine seeing as I never look at it, one positive I can see is it won't get dented by things in my pocket like previous aluminum bodied phones I've owned.
One thing that would have been nice to include is IP67 rating similar to the S5, with the lack of side buttons and the simple nature of the back panel buttons I don't see it being terrible hard to water proof the device. A plug for the usb port and headphone jack would just about do it.
Overall I'm very impressed by this phone, although I'm getting it late seeing as the G4 is already just a couple months away (likely 9-10 months for Fido) I feel as a free upgrade it will be more than sufficient. However I doubt the next gen of phones will be more than 1440p and besides the standard increase in MP count and slight boost in CPU clock speed (some rumors claim LG might opt for their own octa core part too) the G4 won't be revolutionary enough to eclipse my decision any time soon.