Auto lights are great, I had them on my 330d. You just simply leave them in auto all the time. You don't even need to think about it. Sometimes they tend to come on a little earlier than you'd decide yourself but with all the craze with day lights this isn't a problem. I think they should be standard on all cars.
Auto wipers are not so good, like someone mentioned, they never go at the right speed. You always need to keep adjusting them. The only time they help is with spray when passing lorries.