I live in West Virginia and have ACA coverage through Highmark, which is a Blue Cross/Blue Shield affiliate based out of Pittsburgh. Great provider network, not just statewide, but including many areas in neighboring states as well. Plus it includes nationwide coverage through the BCBS network, thus eliminating the need for travel insurance when I'm traveling domestically. I have one of the silver plans. It is just as good as the BCBS insurance I used to have when I was a federal employee. My wife had some very major health care issues last year, and our total out of pocket costs were around $2,000.
Like you, I'm crafting my income to maximize the PTC, so silver ends up being the best deal. But even with the maximum PTC, I still have to pay a modest premium because the Highmark plan is undercut by a crappy silver plan offered by some insurance company I've never heard of. That's a potential situation to be aware of. The PTC is benchmarked to the second lowest cost silver plan, which may not be a plan that you want. You can go with a better plan, but you'll pay the difference.