Very little in this world is either all good or all bad, and the net effect can be very hard to distinguish. It's hurt me - we went to a health savings account plan a few years ago when conventional health care just became too expensive for our little company and Obamacare arbitrarily changed our out-of-pocket (before insurance begins to pay anything) from $2,700 to $3,700. I also know several people whose hours have been cut from 30+ hours to 25 hours to avoid Obamacare - although this is in my opinion a losing battle for the company. Obamacare was all about empowering the government and the bureaucracy can easily decide that 20 hours is the new full time, or even that ALL employees must be furnished with health care. Even free health care. Trying to avoid such programs is difficult in the long run, or at least unless one has FOB status and can get waivers. And Obamacare is bad for employees whose employers simply cannot afford to provide insurance and either drop it and just pay the penalties, or simply go Tango Uniform. (To a large degree these jobs will be replaced almost one-for-one with jobs in larger and/or more profitable companies, probably almost one-for-one, except for low end manufacturing which is hanging by threads where it's not long since departed.)
On the other hand, it's a boon for people who were otherwise uninsurable, and it should help lower health insurance costs (with the caveat that its mandates will inevitably increase costs) for individuals. And it MAY be helpful for those low wage workers who technically had insurance, but of very low value. Either their employers must step up, or their employers will drop insurance and the workers will be subsidized into decent insurance. Or they'll lose their jobs and have Medicaid - but I'm betting that since almost all competitors will face the same expenses, once waivers get too difficult/expensive to purchase employers who now provide crap insurance will provide the mandated good insurance unless they are competing with third world labor.
It's overall effect won't be apparent for a decade or so, but by current estimates it will add more than a trillion per decade to our deficit. Personally I think its focus is as a short term program designed to destroy private health insurance and usher in single payer government health care, and if I am correct, then the deficits will only last for a couple decades before our private insurance system has been destroyed. Then the decision will be whether to run much larger deficits providing "free" health care, or to run the same large deficits and manage costs through limiting care. Given that everything valuable which costs time and treasure is inherently rationed, that won't necessarily be that different from what most of us have now, assuming it is intelligently implemented. (At which point air travel will have become quite dangerous due to aerial porcine excursions, but it IS possible. Our bureaucrats and politicians can't be that much worse than Canada's.)