You're too late to have fun there - Anonymous employee Groupon Employee Review

It's a giant global company, run by big company execs who want to move slowly, control spending, and avoid innovation. The guy who wrote the Good to Great book came in to talk with upper management about the symptoms of companies that had been early innovators and ultimately failed, and Groupon shared every symptom. All of the best innovative early leaders/execs have moved on to other companies.