BCBS was great back in the day, at least in So-Cal. Worked for Sumitomo Heavy Industries and we actually had BCBS & Aetna both at the same time: one was primary, the other secondary. While at Macsteel here in Houston, we had BCBS and they were great, but then when we merged with Namasco to form Kloeckner, we got switched to Cigna and after a learning curve, everything is good. I'm a little uptight about some things that are covered and not covered, but at my age I'm not to worried about lets say pregnancy issues, since neither of us are productive members of society, if you catch my drift, vs some people that are. The deductibles are a little steep in some cases, but that is a result of what your employer is paying on their end and what they want to cover and to what degree. Klein ISD uses UHC and they are terrible- way costly- so my wife is covered in my plan.
To drift off topic a tad, if your employer provides access to a Flex Plan, enroll in it and use it to the fullest degree you can. With deductibles out of whack and premiums rising, a flex plan comes in handy