I must say I am thrilled.
* Battery life is great, no comparison to the S3 that I have ever used. Degree up 65% after 19 hours.
* Dual Sim Card is also the Hammer: I use the phone for business and have drinstecken a company card and a private map. A really thoughtful implementation: I can select which card I want and what use for data for voice. And abroad I put just purely a local map and am still accessible with just one phone on my private number.
* Design is great, even though the 5 inches are somewhat large. But go just yet precisely.
* The UI Asus also works very well.
The only negative point that I noticed so far, related to the software. The e-mail program makes Gmail problems as it seems too many open connections to the IMAP server and the Gmail IMAP server complains.
Now I use the Gmail app just for Gmail and one for my other email accounts.
Conclusion. I highly recommend this phone.