Tell her to read the fine print. If you "can't be turned down for pre existing conditions", the premiums she'll pay will be astronomical, they'll be huge co-payments and any other number of ways they can think of to screw her (and anyone else who thinks they'll be able to do this) over.
No, pre existing conditions are not charged at higher rates anymore. That's kind of like the core issue of Obamacare.
I'm not sure how it works exactly (don't have time to go look right now) but there are going to be some sorts of roadblocks in place to discourage people from gambling until they actually have a major illness. (that roadblock might just be the penalties, which I'll admit aren't going to be much of a roadblock the first few years because they are phased in; they will be higher in 2015, 2016, and so on until the full penalty is standard).