Re: For an update that "Works"...
Automatic download is hideous.
A lot of people are on slow connections and charged by the MB, so they get a double hit of being charged for it and having a slower browsing.
Most people have a data cap (Also known as a "fair use policy") and either get throttled to near nothing or charged through the nose if they hit it.
Tell me the update exists, tell me how big it is and an estimate of how long it'll take to install.
The I'll decide whether I want it at all, when it's convenient to start downloading, and when it's a good time to install.