I’ve used the M96 for a few days. My impression is that the unit is nice (though mine arrived with a broken speaker and the volume rocker installed backward), but the software is unfinished. It needs a manual and, practically, it needs a side light.
Regarding the software, some menus haven’t been translated from Chinese; it does not come with a dictionary; some important M92 functionality has been lost (e.g., multiple annotation sets, format conversion); it can be frustratingly unresponsive, esp. with handwritten annotations; the native, image viewing app, Gallery, has repeatedly crashed on a simple JPEG. Also Android's screen shot function does not work and there’s no contrast or inversion setting, or ability to pinch/multitouch (such as touching the screen while pressing a button, or a longtouch-drag), so some webpages and Android apps are unreadable or unusable and even some of its native system menus are unreadable in “performance” mode.
I’ve posted a video showing problems with handwritten annotation, language translation, and scrolling (
https://www.youtube.com/watch?v=_MXsUxTOZL0). I tried to kludge annotation sets by writing into a document, copying and renaming the document, and then altering the copied document. No dice: changes to the copied document are reflected in the original.