Lower-end Manual Espresso Has anyone used one of the &lt; $500 manual espresso machines like a ROK or Flair? I've read the specs (up to 10 bars for ROK, around 15 Flair) and seen some positive reviews but I'm curious about the quality of the cup.

And, ultimately, wondering if it's worth it or THAT much better than the strong coffee I get from my Aeropress.
If your budget is $500 and below then you can afford a real semi-professional espresso machine, including Gaggia or Lelit, for example.