I've ask the same questions as I have been asked by many friends...who know me as the gun guy...if they should attend. I spoke with folks I know who have been, have been more than once and other instructors who have had students who have attended. The instruction is very affordable, most of your expense is in travel, lodging, feed and ammunition.
The consensus is that they are not a top tier school, certainly not approaching the level of Gunsite, Thunder Ranch, Rogers, Ayoob, etc. However, if it were between a shooter not getting any instruction due to money...where else can you get 2 days for $150... and going there, I would send them there with an understanding of what they were receiving for their money