So I just received my new to me Acer a500 tablet and spent a little time looking through the stuff the previous owner left for me...
There is a page of bibles, some notes on how to plan a sermon, some free sex stories, and a book on sexual positions.
Somewhere I printed instructions on returning this device to stock, can't find them now so off to find the page again.
Looks like PDF should be good enough for what I need and I'm sure any epub/mobi should be fine. Only thing that kind of bothers me is that it only charges from 12 volts, since it most likely runs on 3.3 volts I find it odd that it will not also slow charge on USB.
Display looks nice and touch seems to work really well. Audio sounds good through the built in speakers considering the size of the speakers.