Using both Egreat and Zidoo since many years. Each one still has/had its FW flaws but development is steadier by Zidoo lately. But even with those they are excellent players as they are and I can recommend both. When back home in a couple of weeks will do an evaluation of Z9S which one can compare then with my A10/A11 evaluation. Will first updated my Egreat review to the latest official FW release). The HW made by both is just excellent (A5/Z9S, A10/Z10 and A11/A13/X20). I personally prefer the looks of Egreat but the connectivity/ports of Zidoo).