I have a Omega D2-V (as opposed to your DII) at home. My only problem is a 50mm lens doesn't work for 4x6 or postcard prints. My enlarger head won't go low enough, so I have to use a 75mm. I know, not much of a problem really, if you don't go that small (some people want the snapshot size).
Like wdemere said, be sure to check that condensor lens!