Pros
Venmo is a great place. Our office is shiny and new and we get free lunch everyday. I hear we're also looking into getting a yoga studio. We have free food all day, breakfast and lunch and snacks are in constant supply, and every Thursday is cocktail night. Every other Friday we have an open dev day where we can work on anything we want. As engineers, we have retrospectives every month where we discuss things that we like and don't like, and what we say is always taken into account. Because we're still pretty small (honestly, the PayPal buy didn't really affect us much), it's easy for an individual to take an initiative on something and really make an impact with the company.
Cons
All the food is REALLY healthy. I know that's definitely a first-world problem. But sometimes you just want a chocolate or something. Because we're small and we're growing SO much, everyone always has a lot to do. That's not necessarily a bad thing, but sometimes it can be a little hectic. There's not too many mentorship opportunities, but I think that's again from lack of people.