Pros
The sheer joy and exhileration of working with this truly stellar team of individuals. There are of course individual teams within Zillow, but it feels to me like we are all on the same team, engaged in the same big goal. A recent conversation had in the elevator says it all for me, in the context of what are you doing this weekend. The reply was, "I don't really have any plans," so I quipped, "Well I guess you could come in to work." He smiled and said, "And you know that would be okay." Our conversation wrapped up pretty quickly, as elevator conversations tend to do, with the agreement that it's a pretty rare and magical experience to truly enjoying being at work each day. It's really a romance - loving what you do and who you do it with.
Kontras
Startup pay. For those used to or who prefer a lot of infrastructure support (e.g. receptionist, facilities, admin, IT support) - you might not like it. Zillow is a lean machine. You do your own shipping, faxing, pickup your mail from the front, make your own coffee, do your own dishes). We might even be out of papertowels or batteries occasionally - but amazingly we cope. :) I personally like this and it feels more like a community to me because there really aren't any dedicated "housekeeper" functions so to speak.