Jay, my son just bought a kindle for his mum for Christmas, not realising it wasn't back lit, we took it back to John Lewis yesterday, and I made up the difference to upgrade to a kindle fire hd... Well all I can say is she loves it! She's read a book cover to cover in one day! She hardly spoke all day
She was always adamant that she would never change from books to a gadget... We'll see!
Other features only back up the usability of the device, and also frees up lots of room in a suitcase when we go on holiday

We have an iPad2 which does pretty much the same job, but the size and price of the kindle, seem to make it a better option than an iPad mini
Battery lasted from 9.00am ish, to 3.30ish, then it was used plugged in till she finished the book, so not bad really, considering...
So far, it's a 10/10

Thom