I have to say that the GPS convinced me a lot, although it's a question of aspiration. Compared to my old Xperia Mini, it was an improvement. Getting the location is very reliable. If you haven't had GPS on for a long time and no internet, the location comes up relatively quickly after a waiting period. It takes a moment until the almanac is synchronised, but that's "normal", with internet it's much faster. But it also depends on the app. With Google Maps and Navigation, the road clicks into place perfectly. With Runtastic, you sometimes run a little "off" the road, but that's probably intentional. I was convinced by the runtime - 2 hours of GPS tracking while jogging takes only 5-10% of the battery - which is very good from my point of view - in energy-saving mode, the fully charged phone lasts over 3 days without recharging - an iPhone needs to copy that.