Pros
Peek is probably the place where you'll find most friendly, smartest individuals united together around one purpose. Everybody believes in what the company is doing and share the same values. We all thrive for excellence and the culture is awesome: trampoline dodgeball, bubble soccer, happy hours... and a true "help each other" mentality. Peek is like a family, and everybody enjoy spending time together. You want to be working in an environment where people will fight for their opinions, but the moment a new element put their opinion in doubt will reconsider everything and be open to look at the other side. You will find this at Peek, and this is not easy to find.
Cons
I would say that the main con is that you will work long hours here, like in most startups. This is not your typical 9 to 5 job. Everybody believes in the purpose on what we are doing and will not stop pushing.