IMHO, Queen of Sheba is not a nice dining experience:
They were out of three key things: baklava, Ethiopian beer, and the bread appetizer.
They forgot our appetizer (though they didn't try and charge us for it, which some really bad places do).
I guess I don't like Ethiopian food. I thought I would. I love other cuisines that serve a special flat bread with a variety of little tastes to dip the bread into (e.g. middle eastern-pita&hummus, turkish-flat bread&dips, Indian-Naan+nice sauces). But Ethiopian bread is like a cold thin sponge. And the dips were not good. I ordered both tasting plates (veggie and meat) plus the dish suggested on chowhound (ZilZil Tibs). Nothing was that great, IMHO.
For those that know they like Ehiopian, I have to admit that the service was friendly and the decor was nice. And prices are reasonable.