Pros
It's nearly impossible to find a company to work for that has the same culture as Bullhorn. One thing specifically has kept me at Bullhorn: everyone WANTS you to succeed and WANTS to help you succeed, if they can.
Cons
Bullhorn is a work-from-home-first company, so there's not much outside interaction / socializing with your colleagues, unless you work in one of the offices. If that is something that is important to you, when looking for your next employer, you may want to consider working from one of the brick-and-mortar offices Bullhorn has.