The other reviewers here on Glassdoor are all, save one, from the "in-crowd" of Zak's clique. If that confuses you, don't come to Punchkick.
You have freedom to do what you need to get your job done -- if you are in the in-crowd clique.
You have room to grow and opportunities to build your skills and branch out and learn -- if you are in the in-crowd clique.
You have a say in how the office is run -- if you are in the in-crowd clique.
You love the supposedly "flat" organizational structure -- if you are in the in-crowd clique. (Hint: Punchkick is not a flat organization. There is a ruling party. You guessed it: it is the in-crowd clique.)
If you were the popular kid in school who enjoyed being two-faced and snotty to some people but sweet and kind to others, and miss it nostalgically, PKI is the place for you. You'll do splendidly.