is good if you like a lot of free choice in providers and specilitst. HMO is cheaper. Depends on your helath needs.
I have known some people who hate Kaiser and others are really loyal.
The thing with Kaiser that I see is: If you need to go to a specilitst, it is great. Your regular provider may change freq so if you are a person who always likes to see the same provider, you may not like it.
Kaiser does not tend to go off formulary easily, so if your drug is not on formulary, you may not get it.
But if your health needs involve a lot of specialist, Kaiser or a PPO is a better choice.