I used the device today and I'm very happy with the results, butter looks much "better" visually than what I've made in the past, clean up was a little tricky as I was nervous about what could and couldn't get wet, and had some residue build up on the bottom of the inside of the unit but it came out with some scrubbing. Every time the blending action kicked in it made me jump. Now I just need to bake, probably gonna use a banana chocolate chip muffin recipe my mom has been making since I was little.
Edit: and as for my earlier concerns the machine did do a pretty good job of grinding except for maybe 2-3 half gram sized nugs that I found in my strainer