I used this phone more than a year now I exchanged that phone to S4.Phone had enough features and durable battery compare to S4, but featurewise S4 is a better choice.
The phone was creating big hectic when it hangs. So much of trouble I have faced because of this issue.
I tried to repair it, many times I formatted my phone completely still it hangs.
Sound, voice clarity is good, music video clarity all fine, battery stays long, if the hang issue solves then the phone is good.
Looks stylish, if no hang then the speed is good, grabs network soon, browsers all ok, best part is its very easy to use.
==Avoid downloading more apps for better usage.=