Call reception : it was good I would say but the mess and chaos was the way calling system works the phone.Names and contacts get all mixed up.
Performance : Processor is too old and bad. The way they showed in the advertisement the intel atom processor was too clever but actually it was good at that time not now.The 28nm chipset lets the phone heat up very fast.
Ram and storage : it has 2 gb ram which doesnt seems sufficient and also the 16gb rom is totally fraustating. Apps load faster but later it starts lagging and quite heats up and starts rebooting.
Look and feel : The back panel doesnt seem to be metallic as mention. The phone is heavy and feels sleek in hand.
Display : the screen was a dessert to the eyes and never hurts the eyes.Viewing angles are good and the color saturity is fine I would say.
Battey backup : The battery was small definitely. There is no doubt in that. The 2350mAh battery is quite a sma battery and keeps the flow for about 10-14 hours on a moderate usage .But the con of the battery is that it charges very late , it takes almost 3hours.
User experience: the user experience is fine as it has stock Android with a very little tweaks of Zen UI of Asus.
Physical buttons : the buttons are fine and tacticle enough for a good usage. And are placed fine.
Cons : Nevertheless the cons were too higher than the pros so I devote the Asus Zenfone 5 2gb ram.