Pros: Great people and managers. The employees really seem to love the company and the product, and believe in its focus. The customers love the product too. Just search for Zendesk on Twitter and see what I mean. How many companies get constant props for their customer service? If you know of any other than Zendesk, then they're probably a customer of Zendesk.

Cons: The codebase, both for infrastructure and product, can use quite a bit of work. But it's a result of having to scale so quickly, and it seems to be their main focus now.

Pros: Absolutely nothing. If you know the right people, you can cruise your way through without doing anything.

Cons: Office politics. The recruiter will lie to get you hired, but you are on your own after that. They won't honor promises. HR is really, really bad. It really is all about who you know; it feels like a fraternity. Very PR-focused.

Pros: Catered lunch once a week. Parties. Nice office.

Cons: Location: Hope you like walking past poop and needles every morning! HR protects the company: Bring up issues about your manager and they'll either forward them to the manager themselves or ignore them. Usually, they did the former. Managers have total power: If your manager doesn't like you, you're not going to last at the company. They have total discretion to determine who gets to do what, and will assign you no work, then criticize you for doing no work. Finally, while the non-engineering onboarding was comprehensive, the engineering onboarding was virtually nonexistent.