The Infinity does everything I want, and it is super-quiet.
Positive Product Points
Apprearance, ease-of-use, reliability of grind, repeatability of timer
Negative Product Points
The Infinity comes in two guises: a lightweight plastic model and a heavyweight zinc-alloy model. I got the heavyweight model because the supplier was out of the lightweight one. I'm glad I did. This is the quitest grinder I've ever come across. I suspect that the weight dampens vibration that helps to make it so.
The grinder has a timer knob that one uses to set the length of the grind. I've found this system to be unreliable in other grinders, but the Infinty's works perfectly. You get the same amount of ground coffee every time from a given setting.
I am using this grinder exclusively for drip coffee. I did try the settings that would work for espresso and for Turkish coffee, and they seemed to work OK, but I didn't really put the machine through its paces at those settings.
For my application, I am extremely please with this grinder. It produces a uniform grind quickly and quietly. What more can one ask of a coffee grinder?
I got this machine in trade for a Solis Maestro that was incapable of grinding dark-roast beans without clogging. I had to hassle both Aabree and Baratza over a three-month period to get the matter resolved. At the end, Aabree hired a new customer service manager who resolved the problem immediately by sending me the Infinity. I even got accelerated shipping.
Three Month Followup
I'm still very high on this grinder. The manual says that it should be cleaned often, at least weekly, but I have not found it necessary to clean it at all. Performance is the same today as the day I first used it.
One Year Followup
After a few months, I had to replace the grinding wheel at a cost of $14 plus shipping. The person I spoke with said that these wheels usually last a year. Outside of that, the grinder continues to work flawlessly.