Anyone own/used a Yotaphone for ereading?

This phone looks really good... and the price is so cheap now... less than AUD190 from reliable sources e.g. gearbest.com.

Look at that e-ink display... 960 x 540... looks like a very good device with ability to run full Android on the e-ink too.

Anyone used or bought it? Care to share ebook reading experience? I have unfortunately spent a bit more for a Oukitel K6000Pro which comes with a 6000mAh battery (yes battery life is important for me)... but not good for ebook reading (I get headache staring at LCD for over 2 hours... and I use the computer too much as is). This could have cut it if I use the e-ink screen...

Yotaphone 2 5.0 inch 4G Smartphone with ALWAYS-ON Back Screen Android 4.4 Qualcomm Snapdragon 801 Quad Core 2.26GHz 2GB RAM 32GB ROM Corning Gorilla Glass 3 NFC Bluetooth 4.0
Main Features:
Display: Front Screen: 5.0 inch 1920 x 1080 FHD Corning Gorilla Glass 3 442ppi Screen
Back Screen: 4.7 inch E-ink Electronic Paper Display 960 x 540 Corning Gorilla Glass 3 235ppi Screen
CPU: Qualcomm Snapdragon 801 Quad core 2.26GHz
GPU: Adreno 330
System: Android 4.4
RAM + ROM: 2GB RAM + 32GB ROM
Camera: Dual Cameras, front camera 2.1MP camera, back camera 8.0MP
Sensor: Gravity Sensor, Proximity Sensor, Ambient Light Sensor, Compass
Bluetooth: 4.0
NFC: Yes
GPS: A-GPS + GLONASS
SIM Card: Nano SIM
Network:
2G: GSM 850/900/1800/1900MHz
3G: WCDMA 850/900/1900/2100MHz
4G: FDD-LTE 1800/2100MHz