sjix I have one myself its actually not bad at all. Its very limited of course but for the basic things its great. Their custom OS is just an APK running on android. All of the light apps are custom built for the phone to reduce flicker. when switching apps there is the abrupt full black flash but it doesnt seem to bug me. when in apps it doesnt do the full flash as frequently. I also am waiting on my mudita kompakt, hibreak pro and minimal phone preorders which all are eink as well.