Personal experience with ACA: As of 2016, we're onto our 3rd insurer. Each prior one has dropped our local doctors, physicians groups and hospital. With each insurance change, our deductible has gone up, our premium has increased and our co-pay, co-insurance has increased. In effect, our ACA plan has become an extremely expensive catastrophic insurance plan.
You're not alone. In Texas, they cancelled almost all (or maybe all) individual PPO plans (affecting about 367k people), leaving us to choose HMO or EPO plans (the lesser of two evils). And about a 20% increase (per year) in insurance cost for the last 3 years. I at least hope some folks are benefiting from the ACA, I'm certainly not.
I know Scott and White[1] is still offering PPOs, but apparently they only service 77 counties in Texas. A quick check of healthcare.gov tells me that none of the big insurers are offering PPOs, though. I don't know if there are other small-ism nonprofits like SWHP serving other parts of the state and providing PPOs.