I'm very satisfied with this scale. It's pretty straightforward, I step on it (in the dark), it turns on and lights up, a second or two later it gives me the good news (or bad, as the case may be). It seems to be pretty accurate now that we have it on a hard, even surface; for the first few days we didn't and it was all over the place (don't put it on a shag carpet!). Customer service was helpful in solving that one. I don't have anything to say about the battery life as we've only had it for a few weeks, so far so good.
What's great about it: Good price, backlit display is easy to read in the dark, seems accurate
What's not so great: Be sure to have it on an even surface that is hard