Just be sure you take the right test for your area. I did the whole series of IAEI tests (2A,2B,2C) and then found out Florida only accepted SBCCI. It was good training tho. I blew through the SBCCI tests in about 1/3d the allotted time. The questions were very similar and by the time I got to my 5th test (SBCCI residential) I was just clicking them off, out the door in 45 minutes. The only real down side was all the extra money I spent.
There is usually some "experience" ticket you need punched too.