I often get asked about Enterolab, as I don't hold their anti-gliadin stool testing in high regard.
Dr. Fine's story is pretty much on his website. He is a published expert on microscopic colitis. He started suspecting that in some patients the colitis was caused by an autoimmune celiac-like reaction. He was disappointed in the inaccurate serum tests so he developed highly sensitive stool tests. The discovery of gluten-caused microscopic colitis was a very nice piece of science.
The problem I have isn't with Enterolab isn't Dr. Fine's published work, but that he has never published anything on the the stool tests. When that happens, particularly in someone with a track record of publication, you have to wonder why they aren't publishing. Perhaps he wants to keep the methods proprietary but the other reason might be that he suspects the data he has collected so far won't pass a peer review. Also, most of his customers wouldn't read the paper anyway so it's not going to affect his revenue. He has a nice business going and only occasional scientist skeptics like me saying "hey, waitaminute..."
Enterolab runs the test with VERY low sensitivity levels. A staggering 60% of the people who approach Enterolab because they are feeling unwell have anti-gliadin in their stool, as do 29% of healthy volunteers. That means that half the folks with anti-gliadin IgA might be perfectly normal. There is research that IS peer-reviewed suggesting that stool anti-gliadin IgA can come and go as a normal part of immune function supporting this idea. Even serum anti-gliadin IgA can come and go. (That's why you want the newer celiac panel tests along with anti-gliadin.) The stool anti-TTG is a better test for celiac, but I haven't seen many people on the board come up with anti-TTG from Enterolab. One person who did have anti-TTG missed getting treated for Crohn's for over a year because Enterolab said she had celiac and didn't mention that she needed to see a doctor to rule out other GI disorders. Not cool.
Fine has his lecture slides posted at http://www.enterolab.com/Lecture/Lecturenew/frame.htm (works best with Internet Explorer). The data are interesting and worth a glance if you're curious. It is generous of him to post them for the public. The problem that shows up in his slides and the reason I don't recommend Enterolab testing is because the long-term outcome data show that fecal anti-gliadin IgA is actually a poor predictor of whether someone will feel better on the diet. In other words, you get better information from trying the diet.
Also notice from his data that plenty of people without the fecal IgA felt better gluten-free. The testing isn't a substitute for giving the gluten-free diet a good strict try.
The genetics are fine if you're happy with only the HLA-DQ beta subunit. Enterolab gets the genetic testing done at Red Cross in case you were curious. Unlike some services, which only tell you if you're DQ2 or DQ8, you will get the full results. It does not test for alpha subunit. The genetic test is not diagnostic but many people find it interesting.
Also if you desparately need a piece of paper to wave at somebody, and you're willing to spend a fair amount of money to get it, Enterolab is a good bet. You have a 98% chance of getting at least a gluten-sensitive gene and a 60% chance of getting fecal IgA. Not half bad compared to how hard it is to get a typical GP or GI doctor to admit you're gluten sensitive!