How to know if you've got enough coverage?

[Kenneth LaVoie]

We use state farm and have "cash value" coverage. They've explained 20 times what that means but I find I forget over time. It has started me thinking that maybe I should shop around? We're die hard State Farm clients (30+ years) and love the hand holding we get from our local agent but I'd like to have a better understanding. 

Does anyone have any strong opinions on insurance companies or types of fire / damage insurance to have?

Thank you.