Best way to set up LLC's for rental investments

[Gart Robert]

Hey Guys, what in your opinion is the best way to set up several investment properties under individual LLC's? I have seen many folks say have an operating company manage the day to day operations under it's own LLC and have the properties under their own LLC's. The operating LLC would have leases under it's name, collect rent, pay tax/insurance, etc while the property LLC's just receive the rent from the operating company. Is this overkill or provides actual extra protection?