Is this the LFI-1 course?
I took that one with Ayoob last year. It was very good. Although there is obviously shooting technique involved, it is more important as an introduction to the use of lethal force. I think it is a great course for any armed citizen to take, and worth it at the price.
If this is something other than LFI-1, I still think Ayoob is a very good instructor, and whether it's worth the $800 to you will depend on the exact material.
ETA: I see you are talking LFI-1. Search the board; a few people have taken it recently and there were a few threads.