Churn is one of my two favorite ice cream places in the central valley (the other is Sweat Republic).
Churn makes their ice cream from natural ingredients and it is good... like "oh man that is good" good.. They also have Illy espresso which is amazing by itself but even better poured over ice cream.
There is one problem however... Churn has some of the WORST parking ever! It is right next to (and owned by same owner i believe) the Windsor, which also doesn't have enough parking...
Given the parking issue and the recent opening of Sweet Republic on 16th st., I will most likely go there instead. I will say that Churn's ice cream is a bit "milkier" or "creamier" than sweet Republic's, but they have less adventurous flavors as well.
You wont go wrong with either shop... If you can find parking at Churn.
Update!
Churn no longer has parking issues which is fantastic! They do however use some ingredients in their ice cream that are questionable if you are looking for all natural product... They sometimes use candies for their ice creams that may contain food coloring or other ingredients that someone who is trying to follow a stricter dietary regimen may find questionable.