Virtual Address for Business

[Elex Price]

I was watching a Credit Suite video on youtube and it was recommended for a business to not use a home address, PO Box, or UPS Box for your business address. The video recommended a Virtual Address if your business does not have its own physical location. This was recommended because it makes your business look more credible to lender when attempting to obtain Business Credit without a personal guarantee. 

My questions are: 

Has anyone used a virtual address service before? 

Is this really needed when starting out in Real Estate investing?