I am reviewing after 1 month of use.
1. Build quality is good
2. signal strength is medium, max 10m.
3. I am using 4G sim and it gets heated too much when the signal is weak.
4. I have got issue with power jack, sometimes it work and sometime need to adjust. So prefer to keep it on everytime and switch off/on from the plug point.
Thank you so much Avatron