http://finance.yahoo.com/news/understanding-obamacare-bronze-silver-gold-152027179.html
A few notes from the above article which shows that even the "Affordable Care Act" isn't "affordable" at all under their own definition for many......
If you make $45,690+ as an individual, no matter your age, you will not qualify for any subsidy.  The article says that even a BRONZE plan (the weakest and lowest priced plan available to anyone age 30+) would be $531 per month for a 60 year old in Indianapolis.  That works out to $6,372 per year in PREMIUMS ALONE!  That's 13.8% of the GROSS INCOME of a single person making $46k a year (where no subsidy is paid).  I thought "affordable" was under 9.5% by the ACA's definition?!  He's paying nearly 50% more than that in PREMIUMS ALONE!!  I haven't even assumed the first claim!
Even a 25 year old in Vermont would pay $264 a month!  That's $3,168 a year, or about 7% of a guy making that amount of money.....and he's only 25!  And that's before the very first claim is made, and this Bronze plan comes with the highest deductibles and out of pocket costs (typically $4k+ in annual deductible with the $6,350 (mandated) max out of pocket).  So that 25 year old breaks his leg (or fill in the blank claim) and his claim is $4k (all goes toward deductible), and his total out of pocket costs for that year were $7,168 (all before the first dollar of insurance was paid) - which is over 15% of his GROSS (before tax) INCOME.  "Affordable" my butt!
As I've said all along - all these high rates will do is drive the young and healthy population OUT of the exchanges as they would rather "wing it" than pay these high premiums with high deductibles (or even higher premiums with somewhat lower deductibles as I was only looking at the weakest Bronze plan above).  This will lead to an older and sicker population IN the exchanges, which will lead to even higher annual increases than we currently see today.  Right now we see ~10% year to year increases in health insurance premiums (some see higher, some lower, this is a good ballpark of the average), and that's calculated on the total population which has health insurance today which we can assume is on average younger and healthier than the population that doesn't have health insurance today.  What do you think the annual % increase will be in future years when it's based on an older and sicker population?!  What will happen to all those 60 year olds paying $531 and those 25 year olds who paid $264 a month when next year they get a 12% increase, or 15% increase, or higher?!  The healthy ones will jump ship - and the ones who didn't have insurance who had something come up in their health will jump in to replace them, further accelerating the "death spiral".
Do you think that a 2% "tax" will be enough to keep these folks in the pool (2% of $50k is only $1,000 - this "insurance" is already over 3x that for a 25 year old!!).