First of all I would like to clarify some misconception about the phone. the piece that II got has no Quality Control issues or any creaking sound on hard press. Second, SIM card slot. Third, OTG is working, no heating issues and no signal reception problems.
The phone is amazing, especially the premium look and great performance. Memory management is appreciable, since it always manages to have at least 850MB RAM free. The charging speed is too good. I usually charge it when battery level reaches 15% and it takes only 1 - 1% hrs. to full charge.