I haven't had a problem since I turned it off years ago, but yes, it would retype what I had just written and it was already the way I wanted it. Basically, autocorrect conforms to convention, and anything that falls out of the statistical norm it will butcher until it is satisfied. What I also hate is that I have to watch it to make sure it doesn't "fix" something that doesn't need to be fixed, and it reduces my creativity because it also makes me apathetic.
I was talking to a flight engineer for a KC135 (military air- refueler) about the reason why C-17 transports, a brand new aircraft, have landed on the wrong runway at the wrong airport several times since it came into service. What is interesting is that the old jet it replaced - the C-141, never landed at the wrong airport. We both concluded that because the newer jet is so automated, it makes the crew less aware or apathetic if you will, because they are so dependent on the technology that is supposed to make their jobs easier.
This is the problem with all technology, in simplyfying tasks, it also complicates tasks and overloads our brain. But for the most part, it takes away our ability to think, and the necessity. In Sweden I believe it was, there was a mountain road on which many people died every year. It was apparently a very straight road. The solution? They turned it into a winding road that keeps drivers alert because they are involved with the car and maneuvering it safely.
This is the same with autocorrect, I do use the spell check feature to catch what I might have missed after proofreading, but I love to go through and correct and see new ways to rewrite sentences and identify problems.
Technology has its place, but we need to maintain control and make sure that it only helps us to have a better quality of living instead of allowing it to push us around.