Will my husband's visa get approved? Anyone with experience?

Question

I want real answers from people with experience. Do not answer if you intend to give me b-s.

The next step in our Immigration Process is to pay a fee and apply for a visa. He has been here illegally and working for 10 years at the same job. He pays taxes and does not have a criminal background. What is the interview like? What are his chances of getting approved? We have been married 3 years and have 2 kids.

Answer 1

How did he get to the United States?  Did he come illegally, or, did he come with a visa and overstay?  

Answer 2

If he is in the United States illegally and has been for 10 years, he will be removed and will not be eligible to enter the US for years.

He may not have a criminal record, but he is an illegal alien, committing a crime.  We do not approve visas for criminals.