Melvin Forbes from NULA's uses them. So they must be good. there is alot of gunsmiths that refuse to use Douglas.
I like Shilen, Lilja, and recently have been using Krieger. The Krieger have very nice uniform rifling. People are amazed including myself when cleaning a nice match barrel compared to factory. I used to push a tight patch thru a factory, and you could feel different uniformities thru the barrel, but not with Lilja or Kieger.
More imporatantly is the chamber job from your gunsmith IMO.
Itss all in the chambering job as BC says although I am sure a bad one slips out of all those makers plants every once in awhile. Gunsmith friend of mine in Alabama that's all he uses(Douglas) and they work every gun I have shot built by him has been a serious shooter . I am betting Mr Forbes gets the best of the best from Douglas though since he's probably their biggest customer.