As the last guy said, you can probably find these answers on other threads, but...

You talking about the online course or the in-person class?

Getting your license and knowing how to adjust are two totally different things. I could get my cat licensed if he had bigger fingerprints.

But, getting back to your specific question, I've done one of 1st Choice's online licensing classes, and it served it's purpose of getting the pre-licensing done, but I can't say I learned much from it. But I've been adjusting for 9 years, so maybe I wasn't paying attention. I would guess their in-person classes would be better for a new adjuster.