I will have my new TF300... advice?

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http://forum.xda-developers.com – Hi there (sorry for my english) After my Nexus 7 (returning because of the screen lift and touch problem) and the return of my Samsung Galaxy Tab 2 7" (don't like this tablet) i will have in few days the Asus Transformer TF300. I've read few post here about problem with the update to Jellybean. But does this update is official? I mean, when i turn on the tablet, does this one indicate me that a update is available and start downloading JellyBean? I like JB (from the Nexus 7), but the problem that the tablet don't wakeup after sleep or the random reboot... What to do with that? I don (HowTos)