Pros
Great work environment, lots of smart and passionate people, possibility to do internal traveling between offices (BOS-YUL), calm work environment (especially for an opened space office), great snacks, no micromanagement, great place to foster great ideas, they care about their employees, flextime and remote work possible, flexible vacation policy, great insurance plan 100% covered by employer, health spending account, competitive salaries & stock options plan and overall great perks.
Cons
Sometimes it can be hard to find the information you're looking for as most people haven't worked here for a while, as more start-ups there is few growing pain but it isn't nearly as bad as what I've seen in other way smaller companies... This place is not for everyone, if you need someone to always tell you what to do, you certainly won't thrive at Hopper.