Personally, I'd be wary of anything made by ASUS. Known some people who work there and let's just say they like to focus more on flashy new features rather than getting the fundamentals correct. They also have one of the most mismanaged and dysfunctional RMA systems I've ever heard of relating to the political divisions between ASUSTek, ASUS, and Pegatron. Something having to do with a big falling out among top execs once upon a time that still impacts things today.
I've also heard stories from people who did mock calls into the support centers asking questions about products and let's just say that they couldn't even answer some of the basics of the basics, like things that are on the spec sheet for a product they were supposed to have been given specialized training for.
If it were me, I'd take Bob's basic suggestion but apply it to some other manufacturer. But at <$450 for a full blown PC in tablet form, you're not going to find much that would likely qualify as usable, even for limited tasks like you're talking about.