Personally, as a software engineer, I feel myself very excited about this device.
It could be a great choice for reading textbooks, technical literature and other serious books -
because it is highly uncomfortable to look at color images, charts and graphs in black-white mode!
I have been waiting for E-Ink Triton 2nd generation devices for quite long,
and, finally, happy to see an interesting product that worths the attention
Here is an interesting video from the introduction of Pocketbook Color Lux:
(enable "Captions" to watch with English subtitles
)