1. You realize that you're being treated as a second rate disposable tiny part in the huge system.
2. No benefits.
3. Low pay.
4. You have to communicate with a lot of ignorant people, just imagine that at your job you have to talk to Peggy a bank employee, outsourced from Bombay, who only speaks scripted language, and THAT language you have to interpret to a deaf 90 year old immigrant who can barely remember her age, yet just keeps screaming just because.
5. You get sick, your phone line is down, you really want to pee and can't wait until your break (only 2, or even 1 break in 5 hours!) - it all counts against you!
6. They mostly hire immigrants who desperate to find a job. They're just fluent in two languages, maybe even just in one language and speak some English but most of them are NOT interpreters.
7. The company really cares if you're polite, it doesn't care about the quality of your interpretation.