Medical Billing Specialist? Yes? No?

Auburn

I'm wanting to work from home so I'm considering getting certified to be a Medical Billing Specialist. Not coding. But I'm wanting to hear from people who have done (or do) this job. What are the pros and cons? Did you have to work in a hospital before you could work from home? How much do you get paid? How much did getting certified cost you? Do you enjoy it? How many hours do you work a week?

Thanks in advance! I really would appreciate it!