The people giving this album one-star reviews because Ke$ha "has no talent" etc, have a very simplified understanding, I think, of how records like this (and her first) get made, and how difficult it is.
First, the majority of the work here is in the production. She was at least partially involved in this process, probably on the creative, if not the technical, end. This becomes clear if you watch any kind of in-depth interview with her, and if you compare her sound to others, and to her influences.
Second, writing "meaningless, catchy" pop songs is not easy. I know this because this is something I do. Packing this kind of brain-sticking power into snarky, compact rhyming couplets, and stringing those into a song in an attractive cadence and with a juicy melody (autotuned or not; it doesn't matter-- should we not use electronic instruments? do we live in the stone age? if it sounds good, do it) is not easy. or lazy. it's very, very hard. that's why people get payed extraordinary amounts of money to do it. Try it sometime.
Her image and personality are all part of the package too. Say what you want about her; she's interesting. Statistically, probably more interesting than you. If not, you should work on becoming famous, because in that case it shouldn't be too hard.
This is an extremely addictive, ass-moving, impeccably produced dance record with wit and provocative power (judging by the bristling reactions to her lyrics i keep hearing), and that, despite the opinions of many of these reviewers (I don't know what their experiences are with making music are; I won't assume) is not something simple, effortless, to render incarnate, though Ke$ha may make it seem so. It isn't genius; it isn't the best out there. But it's a respectable and well-crafted work of pop, and I'm not sure how many people actually know what that means.