I went to a SCORE workshop; it was lead by an egomaniac. You can get an advisor, but they won't take you seriously when you're 20; and, I wouldn't bother going now. My impression of SCORE is that they build businesses locally, so you will get an advisor who has worked in a type of region-specific business that just happens to not be software, for 40 years, and does not know very much about computers at all. But the most apparent thing is that I was 20 years old, and everybody else was 35+. I also felt a little bit of disdain towards me because I was 20 years old and wanted to start a software business. They had this great advice to find a high school student to do your web site and not pay him or her any money. That's their brilliant advice to all new companies.
But, that's my personal experience, that's all.