Pros
Insperity pays an ample base salary which can help remove the stress of making ends meet while you're learning the business and building a book. Insperity also provides a spend card for monthly gas, organization dues, business lunches, etc. Perhaps the bets thing about working here is that it appears everyone wants everyone to win. There's certainly some haggling about who owns what accounts from time to time, which happens in every sales organization, but there are clear rules that will determine the true owner.
Cons
Not a ton of downside. If anything, it can be frustrating to a seller who comes from a world where sales are a little more transactional. The solutions and the sale require trust from a customer, which can take time to build. That said, everything needed to succeed is here for those who seek it.