Pros & Cons between Commercial or Conventional Loans

I recently spoke to a lender who only does Commercial Loans.  The process and qualifications seem less strict for qualifying for a commercial versus when apply for a conventional loan.

I am only familiar with conventional loans.  

 Which option has worked the best for my fellow BP Investors?  Wondering if any BP members can share advice on the pro's and con's and what has worked best for them.  

Considering the following: I am trying to line up some financing via my LLC for a single family property.