The rules and conditions can vary from state to state with VPI pet insurance since insurance is regulated on some levels by the state offered it.
I highly recommend it. Pre-existing conditions are not covered- so it is best to insure your bunny when they are young anyway. Also there is no coverage for routine care like nail trims and spaying. Some dental problems are covered- but in Michigan I know they do not cover malocclusion- when the front teeth are so crooked that they severely overgrow and need to either be trimmed constantly or removed. But other dental problems that are not considered genetic would be covered.
VPI is the only pet insurance that accepts bunnies that I am aware of. And pet insurance does work differently than human insurance- you typically have to pay your vet bill in full yourself and submit the claim to the insurance company- and the insurance mails you the check for what is covered.
A typical monthly premium for a young bunny is about $11-12 dollars a month- and just claiming one incident a year can get you a reimbursement of more than your yearly premium. But of course with that being said- you may never have to claim anything. Cotton has had insurance since she was 5 months old- so over a year now, and no claims. But I would rather have her healthy than get my moneys worth from insurance, plus the peace of mind is worth it!
Typically the more pets you have insured- you ocan get a multi pet discount- at least in Michigan. Both of my dogs have insurance also, plus the additional riders that are offered for dogs and cts that cover a portion of routine care- vaccine, yearly exam, fecal check, etc.