Pros
Cvent is a big company, and it sounds like people's experiences here are really different based on which division and which team they work with. I work with the Enterprise Events team in Professional Services. My teammates, supervisor, and middle management are incredible. Everyone works hard and shows up on time. No one micro-manages me. I get to set my own schedule; as long as the work gets done, how I get it done is my business. There's always someone willing to lend a hand when you're underwater. I trust my supervisor, who listens to me and assigns me projects that are relevant to my interests and that help me grow in my role. My middle management is accessible, helpful, and communicative. They make changes based on what I need to get my projects accomplished right, even when that costs some money to get done. The job can be stressful, but working with people as good as this team makes it entirely worthwhile.
Cons
Stressful work often with long hours (45-60 hours/week is common for me). If there are weekend events that you're managing and you're a salaried employee, you're expected to work on weekends without additional compensation. This seems to happen once every 6-12 weeks for me.