From what I can see, it should be pretty straightforward, but this platform is a little wonky, so I can't be sure.
I don't know if anyone else has tried it besides you and me. For me, since I've been doing so much reflashing lately, I'm draining the battery much more than usual, so I have no idea. Once I'm done working on this stuff, I'll go back to my normal routine, which should give me a pretty good idea of how useful it is.
If anyone has a reader they're not currently using (I know, I know), I'd ask them to try it out to see how the drain is.