Personally I like the flexibility of a PPO and for myself I would not pick Kaiser. That said I know a number of people who have Kaiser and are quite happy. My daughter has Kaiser in Northern California and she loves the low cost. She gets Botox for migraines and her copay is very low. Her maternity care included the c section and hospital stay for just $200.00. Specialists are hard to get in to see as the primary Dr is the gatekeeper.