Note that I am still an iPhone user and will always own an iPhone. My 4 is still my daily driver and will be until the 5S (or what ever it is called) comes out.
But I've been curious about Android and especially the Google Play Editions and was sorely tempted to get a Nexus 4 but held off. Recently got one of these instead, early days yet and a big learning curve which will be fun.
Out of all the Android based smartphones this is the nicest build wise, I spent a bit of time in the phone stores playing with them all. The shape of the back brings back memories of my 3G