If you buy the absolute cheapest Bronze plan, you're going to struggle to get the same access and quality of care as someone who pays more for a mid-range Silver plan. That really shouldn't be a huge surprise to anyone.
Not sure this is true in all cases. This would be true in some cases where the difference between say Bronze and Gold plan would be different networks, but a lot of plans have the same networks be it Bronze or Gold or Platinum. The difference in these cases are more the deductible and max out-of-pocket. When selecting the plan the Obamacare users should read the fine print on what the network is.
For a reasonably healthy person the best deal I think is to pick the most expensive Bronze plan. Usually the network is pretty good but it is a lot less expensive than Gold plans. The cost sharing would not be great but if you are healthy it is unlikely that you would spend that much out-of-pocket anyway.