A very cost-effect, attractive choice for doserless espresso use so far.
Positive Product Points
Perfect for grinding directly into a group. I get no static effect at all, that's none at all, when I direct grind. Much less mess than anything else that I've owned.
Negative Product Points
I would have prefered something other than black or red as color choices.
I've owned three different burr grinders before the Solis: a hand grinder, Zassenhaus; a LaPavoni, and a Braun. All of them produced varying degrees of "grounds on the counter." Both the LaPavoni and the Braun reguired that the grinding shute be cleaned with a "tool" after almost every use. The Pavoni (Duet) had both doserless and doser capability, but the shute jammed on every use. Removing the doser or the doserless shute to clean it usually left a mess.
With the Maestro Plus, it is very easy to grind into the group. When grinding directly, I have observed just plain zero static effect. The gounds simply stay put in the group. The grinder does leave some grounds on the counter, but the amount is less than say 1/4 of the mess of my other grinders.
I find that if I gently tap the machine several times towards the end of the grind, the shute will clear 95% of the time and almost all the coffee ends up where it should. That's no tools needed to coax out the coffee. This is a huge, much appreciated, improvement over the other grinders that I've used. None of the other electrics would clear with taps.
I've used 4 different types of beans so far and found "dialing in" the grind on each one to be easy and to be repeatable. I do not keep beans in the hopper, but rather add just the amount of beans for that shot. And I only use the grinder for espresso. The old Braun is used for drip coffee.
One point that some other reviewers have mentioned that I'd like to correct. You can adjust the burrs with the machine off. But you aren't supposed to have any beans in the hopper if you do so. That works perfectly for me. I adjust to the setting for the beans that I'm using then put in the beans!
I now can produce reliable single shots with my Gaggia. None of the other grinders would allow me to do that.
I'm pleased with the performance -- and the espresso!
I bought a "lipstick" red one off of eBay from Home-espresso. It was a straight forward eBay purchase with prompt shipment. I have had no reason to contact the seller.