A great value in grinding for drip coffee only. NOT recommended for espresso brewing.
Positive Product Points
Value, compact, cheap burr replacement, simple to use, simple to clean and adjust, removal of upper burr could not be easier, removal of lower burr is pretty easy too with the right tool
Negative Product Points
Amount of fines (fines refers to dust that is created that is smaller than the average grind. Too much dust leads to overextraction), the plastic model is somewhat staticy,
The Capresso Infinity was my first decent grinder. Before that it was a whirly blade. I originally purchased this grinder solely for drip coffee. It is a great value for that application. The quality of my coffee improved immediately when I started using the Capresso over my whirly blade and I could taste the improvement in the cup.
Not all that long after I got this grinder I purchased an espresso machine. I had always heard that grind makes an even bigger difference when brewing espresso and I soon found that it wasn't just hot air or empty words. The espresso that I made after grinding with the infinity was passable but I wouldn't call it great or even good. In fact the espresso shots weren't really drinkable alone but it made for OK cappuccinos. Also, when grinding with the Infinity my Bodum Santos vac pot would sometimes stall due to the fines. All-in-all though this is a good value grinder for doing only drip coffee. I bought a Mazzer Mini not long ago and I could taste a real difference in clarity even in drip coffee over the Infinity. Also, when you look at the wet grounds after the brewing process there is a visible difference in the fines that you can see in the Infinity vs. the Mazzer. The espresso experience was a whole other world. You need to compare apples to apples though and the Mazzer being so much more expensive makes it a golden apple to the Infinity's granny smith. I didn't have that much of a desire to upgrade this grinder until I became interested in espresso. When I wasn't doing espresso at all I never imagined that I'd shell out for a Mazzer. It's not that the Infinity cannot grind fine enough for espresso...it certainly can. That's never been the issue. The problem is that it doesn't grind as consistently as a good espresso grinder, creating some dust and various sized grounds. This leads to extraction issues which do not allow for a great cup of espresso. Let's face it...even a whirly-blade can grind fine enough for espresso...it's consistency that is key.
Other things of note: The grinder requires sweeping out along the burrs regularly because it tends to hold grinds in there around the burrs. When I grind with it as the grind ends I usually tilt the grinder forward and tap firmly on the back to try and get as much of it out as possible. Still, though, it needs sweeping after that. Luckily the top burr is VERY easy to remove and you can remove, sweep and replace in less than a minute. There is some static that varies by location and climate. I'd say that after a year of usage the burrs should be replaced. They are not too pricey.
A NOTE ON FINDING YOUR "ZERO": You will hear much talk on the forums about finding your "zero" on a given grinder. This is the point at which the burrs JUST start to touch and you hear a chirping noise. From this point you start to back off a bit to find your espresso grind. Another reason that this grinder is not good as an espresso grinder is that the grinder is purposely designed so that you cannot zero the grinder. The burrs will never touch. That is just how it is made and it is a detriment to espresso grinding.
All of the above thoughts and reflections are based on having owned the Infinity for a year.
Went fine. I don't remember which vendor it was but I bought it new through Ebay.