It is fast enough for a reading light, especially compared to my pocket reading light (Bookeen Opus).
It handles fairly ben images (manga!) But cons, when it falls on an image that does not like (0 kb file for example) it stops the viewer without taking care to place the cursor over the image in question.
Another fact that is, the stylus is required to navigate the touch.
Not that we should accuracy, but the device just does NOT recognize fingers.
It is not less usable, especially with the storage on the side to put the stylus without losing during transport.
The internet also works, but if you want to buy against the reading light only for that, I advise against it.
It is indeed a reading light. Black and white. With inadequate refresh rate for a multimedia web.
By cons, to retrieve a book on a webstore or a custom website designed for the reading light, it can be handy (for example, I use the browser to point to a local website that lists my ebooks, which goes soon as remove and replace the SD card every time).
Overall, I am satisfied with the product.