A worthwhile upgrade from preground but only just - spend more if you can afford it.
Positive Product Points
Small Cheapest non-blade grinder available in Australia
Negative Product Points
Grind steps too coarse Grind quality only OK Won't grind fine enough LOUD (85dB at operator point - need earplugs) Messy due to static Terrible bin design Chute holds too much old coffee Need to hold down switch to grind Flimsy feel
After a year of using preground coffee, I bought this as an upgrade and it certainly did improve my espresso. It was a pain to use due to the noise level (which you couldn't get away from since you had to hold down the switch for grinding) and the mess caused by the static buildup and the awkward grind bin (too narrow for dosing scoops and the pointy ends clog up) so I would grind enough for several days and store the grinds, accepting that they would deteriorate over those days - it was a worthwhile improvement over preground.
Still, I couldn't get the same level of crema or aroma as my friend did on his Brugnetti/Mini Mazzer combination when using similar beans but at the time, I put this down to my more basic machine. After discovering this site, I read what the Mark Prince's Quicklook of what Carreza is capable of so I decided to revisit the grinder. Visual comparison of the grounds from my friend's Mini Mazzer vs my MM showed that even on the finest setting, the MM would not grind as fine and also, the MM grounds were varied in size from powder to visible grains. In addition, the grinds from the MM came out quite warm while the Mazzer grinds were cool. Running Mazzer grinds through my Carezza gave the same espresso as the Brugnetti, confirming where the problem lay.
Since then, the MM has been retired for a proper burr grinder (Imat Lux) and I now marvel at what great espresso such my cheap setup can produce.
Edit: for Nth Americans, the Lux is the same as https://www.time-co.com/2vanilla.htm but only cost us about US$175 - dunno how all4coffee can justify US$295
Grabbed the box off the shelf and took it to the checkout.