The key was an ordinary, everyday use features and a good price / performance ratio for me. This is absolutely given here. Useful camera, intuitive operation, and good Sprachqalität for starters enough space available. The latter can be expanded with Micro SD card. Their insertion was a bit fiddly.
Next a selling point was the possibility of navigation without an online connection and a replaceable battery for me.
For Windows Phone, I have uA therefore decided, because all apps in the store are checked-security before they are published. That's not the case with Android. The shop is indeed correspondingly small, but all I wanted was available.
Compact manual is included. But you almost do not need. For detailed help in the Delivery State an app exists.
With one battery charge to get in (for me) Normal use (mail, news and weather retrieve a few phone calls) with permanently activated Bluetoth comfortably over three days.
Conclusion: My expectations were fully met.