If I'm not mistaken, one of my DH's friends did the Abbey program about 20 years ago.
He thoroughly enjoyed it and reccommended it to anyone. But it did seem pricey, at least to me, a poor college student. Of course, back in our day, college kids also actually were considered adults and went off to Europe without chaperones or assistance and backpacked across hostels on a few bucks a day, eating cheap and seeing the sights, so it didn't seem as good a deal at the time as I think it would now.