The first two days were interesting. The instructor, Eric Conrad, has done an excellent job tailoring the class to both newcomers and experienced pen testers alike. Also, he has a lot of interesting stories. If you are looking at taking a SANS course, he would be a good instructor to take it with.
I don’t want to explain what the course covers, that can be found here. I just want to say that my first impressions of the course and the instructor have been positive.
One thing I might recommend would be either buying Burp Pro before the class or consider setting aside the money so you can buy it mid-class (once convinced by the instructor of its worth). You do not need it at all to complete the class, the free version will be sufficient, but the Pro version will definitely speed up some parts of the 2nd-day labs for you. Also, it will be used in your career on the daily.
Here I go! Off to learn!