I have nothing bad to say about the Moto G, I just could not lay my hands on one anywhere and I like to handle phones before I buy. The Desire 610 feels very solid in your hands, speakers are good, call quality good, radio signal strength excellent and the battery life is crazy good in my experience. The only downer is viewing angles, off angle viewing is a disappointment, something the Moto G is reported to be much better at. Camera is okay, I'm not a big photo guy so it's 'good enough' for my needs, honestly think it's better than the camera on the M8.
Performance is good, Sense 6 is snappy (I don't use Blinkfeed so I can't speak to that) and overall it's just been a solid and useful device. I'm a moderate phone user, some days I pick it up every 15 minutes, other days it sits on my desk idle for a couple hours at a clip, so your mileage may vary of course, but I'm fairly pleased. I'm done paying $650 for phones and it's nice to see some competition in the mid-range.