That's actually a brilliant way of putting things. Personally, what matters to me most is that the UI very rarely if ever hangs. I don't really mind how long it

That's actually a brilliant way of putting things. Personally, what matters to me most is that the UI very rarely if ever hangs. I don't really mind how long it takes to do things, so long as it doesn't occasionally take 3 seconds to respond to a click (even on a top-spec MBP, I'm looking at you FF & especially Safari). The perfectly streamlined design helps too :-)