Our initial reason for an LLC was for health insurance. This was before Obamacare when it was difficult to get health insurance for pre-existing conditions. As Robin had a pre-existing condition we could get group health insurance under the LLC and she could not be denied.
Since then we have kept the LLC as there does seem to be some tax advantages and we can use the federal ID number instead our SS#.
I haven’t really analyzed if there is a true advantage to keeping it.