by Jeff on Thu Oct 06, 2011 2:16 pm
In my opinion, once you're in an E61-style HX and have temperature control down (either using the "water dance" or EricS' thermometry), you're 90-95% of the way to current, home-friendly machine nirvana.
[Edit for clarity: Once you have moved up to that level,] If you have money burning a hole in your pocket, you'll likely get a much more significant improvement in the quality of your shots with something like a Compak K10 or Mahlkonig K30 than you would by spending $1500 more on the machine, even if you've already moved up to the Vario / Super Jolly level. With good coffee and decent technique, the differences were immediately obvious to me, both in flavor and in forgiveness.
Another thing to consider is that I expect that "pressure profiling" will be the hack-de-jour over the coming years and then, eventually, making it into pro-sumer machines. Those thoughts took both the GS/3 and the Speedster off my "Most Wanted List," even after the grinder purchase.