Nokia Lumia 730 is a NICE phone the best part of this phone is camera the phone having 6.7mp rear camera and 5mp front camera cameras are awsome they take awesome pictures.Battery is ok but I recommend you to keep it in win8.1 till we get the stable update of win10 if you wanna to update in win10 keep it in slow insider ring. if you do not like the win10 you can go back to 8.1 anytime using windows device recovey tool.