I loved the show! It was great. Its awesome that Mojo decided to do a show about a start up and I hope they continue the series and/or do more shows in the same vein as this. As a person who's interested in startups and as avid consumer of TV(or Hulu) shows this is a great inside look; both entertaining and informative.
Although I dont know how accurate it is to real life, having worked in a very small company and having to wear a lot of hats and filling in positions that were never in the job description, i can relate and sympathize with their troubles.
As far as the company goes, I immediately dismissed the idea, I was indifferent to it, until i kept watching and realized that it was actually pretty unique and one that I would've never thought of myself. Given that their only competition (kinda) is USPS, and with billions of mail being sent, there a lot of profit to be made and a great service to be offered.
Kudos Ron and gang. Good luck in your adVentures.