I didn't know hotmail still existed, so I can't comment on that one specifically. But in general, I don't mind changes as long as they actually make stuff better, or at least don't break stuff, but I've seen a lot of changes lately that remove functionality or just make a mess of things for no apparent reason, and those (obviously) I don't like. Youtube being a great example. At least with the most recent youtube one they made it easy to go back to the previous way, luckily, because honestly it took me all of 2 minutes to figure out I wouldn't be happy with that one.