Columbus has some strong dynamics…cheap prices, 3 F500 companies, military, hospital, kayaking enthusiasts, Kia car plant.It has as many bad parts as good, so do your research, but I do believe if it is just about the investment, there’s some money to be made there

Their data and skip tracing isn't the best, but as you noted its cheap (you get what you pay for).

Why are people traveling to the area, understanding this matters. 

  $560 is pretty cheap. 

I have a solution that I do myself once a year.Here's one of my best tips: go on Airbnb as a TRAVELER, in Traveler mode.

Ideally my goal is to travel while renting out this property.

This year we've used 1 of our furnished rentals for my wife's clients who travel into town for weekend intensives.

Its a gamble to go the permit route or not in Philly and absolutely matters the neighborhood/your neighbors as they are usually the folks that will call L&I on you OR if your property is near other construction sites where inspectors would be traveling to/from. 

Quote from @Andrew Steffens: Not sure as a traveler I would stay in one or not, but I am sure there is a market for it. 

This is like asking in an air travel forum, how do you fly a plane?