I've worked at Willis Towers Watson's OneExchange for two almost two years in which I had different experiences in each season.
It's a call center (with a few non-phone positions) so it can be quite busy sometimes (primarily from October through December), but there is a lot of down time.
My first season was pleasant and overall enjoyed due to having a helpful team and a great supervisor who was helpful, patient and professional.
My second season, unfortunately, did not go as well as my first. I still had a group of support (although my team mostly consisted of new-hires whereas it was my second season, so I gave my all to be a helpful teammate for the newbies), but my supervisor for this season was not pleasant to say the least. I, as well as others on my team, struggled to get along with our supervisor who from time-to-time would yell and throw tantrums, even while we were on the phones with customers (who occasionally would hear this supervisors' antics in the background). My supervisor also would instruct me/us to do one thing, and then become upset later when a policy was changed and he failed to mention it to the team. It just didn't seem as if he cared whether his team succeeded or not. Overall, he was a horrible leader. Luckily, I was fortunate that other, more understanding supervisors were in the area that I could call on for help or questions.
All in all, it's a decent place to work. Just like with any job though, it matters who you're working with.
Free lunch sometimes; lots of downtime during certain months.
Short 30 minute lunch (unless you like that kind of thing)