Tenant application and credit check

[Paul NA]

I have potential tenants that are interested in a unit I have listed on Zillow for rent.  Typically I have used an agent in the past, but decided to rent it on my own.  I am at a stage where I have interested couple, but curious on if i should use Zillow application/background check process?  Have any of you used this in the past?  Also I have couple along with a cousin that is interested in renting the unit.  So would the zillow application process review all 3 individuals or another application you recommend?  Thanks