In November I bought an LG G3 Stylus Dual Sim. The GPS just didn't work, and nothing I can do will make it work. GPS is very important to me, I use it in the car, walking, on the bike, and it must work in bad weather, which we have a lot of. Turns out the 'warranty' is as much use as a chocolate teapot as well.
After reading this page I bought a Motorola G XT1541 on eBay. The GPS is just stunning. Got a fix on the SatNav in 3 seconds in a rainstorm (double speed wipers). On a trip, heavily overcast and I am seeing 6 metres accuracy. It is a replacement for my old HTC Desire HD and it is in a different league of performance. On a recent trip with a colleague, again in bad weather, her iPhone was getting nothing useful and my Motorola G was holding a fix at never worse than 13 metres (that I saw). Driving in storms with the SatNav rock solid is a wonderful improvement, rock solid in the sense that it doesn't suddenly say 'turn left now' without any warning as you go past the junction, because it has just caught up and re-fixed.