Great device for PDF mark-up and note taking
I managed to buy one and go to Hong Kong to pick it up at my brother's house (why don't you send to Singapore?) I use the reMarkable almost daily to read mostly pdf formats (as I already have a kindle for e-books) and also use it for note-taking. I like the instantaneous feedback of the writing surface.
The battery will last more than a full day if used extensively during the whole day.
The ability to sync to phone and desktop via wifi is great as you can have your notes with you should you not bring the reMarkable with you once you have synced.
My gripe would be the bottom part of the pen gets dirty and stains easily and I have had it less than 1 month. It would have been better to have the same plastic material as the top part throughout the whole length of the pen. Or produce a pure black pen.
If there was a better way to create and organise the folders and to have external micro SD card storage that would be great.
Other improvements could be the ability to draw straight lines e.g. when using the highlighter or for underlining text.
On the whole I really like the reMarkable and would carry it with me daily to work. I would highly recommend the reMarkable for pdf mark-ups.