Support definitely feels like a cog. You're expected to know more about the whole suite of software than 90% of the company, it changes all the time, you are at work 9 hours a day with an unpaid lunch break, you will inevitably work weekend shifts (though not often), and also work 11-8 shifts, especially when starting out.
The salary is not great for support. They recently improved it, but it's still not competitive.
It was really hard to move out of support. The job is presented as a catalyst for growth and moving into other branches of the company. And this was true for some, but it interviewed for no fewer than 5 internal jobs and was not given actionable feedback.
I had two really poor experiences with managers. When I was there 80% of managers where first-time managers, and I never really felt supported by either one. I was giving mixed messages about my performance. My numbers were always good, but it was always implied that I wasn't working hard enough.
These cons added up to a hard to digest lifestyle and poor self-esteem. My manager even suggested I should leave the company because I wasn't happy, instead of asking how she could help. She is a very celebrated manager now. It makes me uncomfortable.