Fast for eink, but also absolutely terrible ghosting, which makes the speed considerably less impressive considering how straining it looks. What's the point of a fairly quick response to screen updates when you have to press the manual refresh button in order to read what's on it?
I spend many hours of text editing / word processing on an Onyx Boox Max2, 13.3'', and have no problem with ghosting. It depends on the so-called "waveform", or firmware level algorithms for dot switching (and it's probably using Regal, though I am not sure about the details): I would say really almost-zero problems with text rendering (and update).
I haven't used this product, but if you look at the linked YouTube video starting at around 11 minutes you can see it going from "ghosting" that's hardly noticeable when reading an article, to really noticeable ghosting and lower resolution (but much faster refresh rate) in the "video mode". If you're watching a video presumably the "ghosting" would all mush together.
E.g. at 11m47s[1] the reviewer is in the text mode, hasn't pressed the manual refresh button, and when I pause the video the text doesn't seem to have any visible artifacts (maybe some for around half a second, until the image "settles"?).
I agree that it would suck for a lot of applications, but as a secondary screen to read text/documentation, or even watch the scrolling output from a CI system this seems amazing.
Have you used this display in person? Is it worse than it seems to be in that video? If so for what (if any/all) modes and use-cases?
