Days ago, I purchased this dongle, Thanks to curiosity.
About the networking performance, It's depending on band 3 (1800 MHz) that your provider serve. If it's bad, then so does to the result.
For the software, It's powered by Android 4.4.4 (For real. The entire dongle is running Android in it), and the IMEI is actually coming from Redmi phone.
Anyway, It worked.
Could also plugged directly into PC as it uses RNDIS for that.