Got me one of these little phones today after my Nexus 5 finally died (may have finished it off by landing on it at climbing).
Got it in store for £150, the woman said the website prices are different? But it was the last in stock and I needed a phone.
Didn't realise it was a nano sim, so I had to go about cutting down my Three micro sim. Bought an unlock code off Ebay and received it 15 mins later and it worked a treat. I'm very impressed especially for the price! My only niggles are the camera doesn't seem that great compared to my Nexus, especially the HDR mode. And there's a little choppiness opening apps/swiping screens but not bad enough to be a problem.