Hi everyone,
While out shooting, I usually have several GB worth of CF cards, and if on a longer trip, I have my laptop with me (Macbook, soon to be a Macbook Pro). Usually, this is enough to store any images until I get back to base and can cull them back, sort them out, etc. CF cards are cheap these days, but they will get cheaper into the future, and I have more than I need at this time, so I don't really want to buy more of them, even though they are probably the safest place to keep your files until backing them up at home.
Recently, I started reading "The DAM Book" by Peter Krogh, and it occurred to me that the addition of another "in the field" backup might not be such a bad idea! (And I'm only a few pages into it
). The Epson would also make a great storage and viewing device when I don't want to have my laptop with me, but expect to shoot more than my CF cards will allow. So, with all that in mind...
Do you use one? How is the battery life? Especially interested in transfer speeds and how many GB of images I can expect to safely move to the Epson before the battery is flat (or too weak to be relied upon to transfer another card). How do you find it in the field? Easy to use? Does it need constant supervision, or can you trust it to transfer files without checking? Will an error message pop-up if the transfer does not go smoothly? How about if the battery is weak??? All this stuff is something that I'd like to know before I consider spending the cash (and it's a fair bit of cash) on something like this. PLEASE NOTE: I am not interested in a storage device without image display. I am really only interested in the Epson, unless there is another brand that makes the same thing, only better. 
Thanks in advance! 

