When portability is of primary importance, then this scanner is indeed a good option. Standard scanning features with Epson's software, and it pretty much does the job of scanning documents and receipts. (Thank you for the marker that clips in for particular document sizes) Battery life is indeed impressive.
In terms of future revisions; it would be great to see a USB C version. Taking it through an airport in today's world will require you to throw away the AA cell batteries, unfortunately. I wish a lightweight power adaptor came along with the pack or an integrated Lithium battery model.