Screen time? But yes, it's almost the perfect phone. If you don't care about SD slot or battery, it is the perfect phone. They could have put in a bigger battery for the price... But it is just about the perfect phone.
I recently migrated from an iPhone 4S and I am so happy about my Nexus 5 - It is almost the perfect phone. Oh, and regarding the battery life, I find it perfect good - It lasts me a whole day of heavy usage (~5h screen time) and I usually still have 5-10% left!