I have recently ordered a Berkshire 390BH and I already own a Forest River Georgetown. I looked at the Tiffin diesel pusher with the bunks (would be the Allegro Red) which is a very nice unit with special attention given to quality. I visited the Berkshire plant last week and am happy I went with the Berkshire. It was all about what you are willing to live with for the money. I would rather had the Allegro in some respects but I could only justify the Berkshire. If money is not a problem then go with the Allegro. But if money does play into the arena, then the Berkshire is right for you.
Right now they have a $70k rebate, 40k in free upgrades. It will come with every possible upgrade including the washer/dryer combo, double paine windows, fantastic fans, day/nite shades etc...
Yes the Allegro comes very fully equipped but still too much money for me. Now if service is your priority THEN GO TO THE TIFFIN AND DON'T LOOK BACK.
I have a friend with one and the owner of Tiffin himself handled the issue. They are hell bent on making you happy.