I had a moka pot for years. Then, I got rid of it and I cannot remember why -- maybe had some green something/discoloration inside that wouldn't wash out and freaked me out. I really enjoyed the coffee from it, and should get a new one.
I don't know much about coffee -- never heard the term "bar", and that wikipedia entry seems to say that espresso via moka is not true espresso b/c not enough pressure.
I did greatly enjoy the coffee, and it tasted better than my Mr. Coffee drip machine. I never went so far as to grind my own beans, etc... Maybe it was just richer as I was using espresso grind rather than regular old drip machine grind.
I wonder how much of my moka appreciation/fascination has to do with how I first encountered it. I'd never heard of one or seen one, then I was in Spain, and that's how everyone was making coffee at home. I was fascinated, and the coffee was much better than anything I'd ever had in America, and it seemed sort of an old-fashioned way of making it, but cool, and stylish, just like the Spanish people. Elegant and simple.
Then, a decade later, I was in Maine, and my host had one, and we'd have espresso and hot milk every afternoon. Again, the Maine quality of life and pace seemed old-fashioned, yet elegant and simple -- and it brought back the Spanish memory of a decade earlier (no, I wasn't eating madeleine). So that's when I got my own Bialetti.