This is an amazing tool! I wasn't too sure about it at first because I thought mixing so fast would create a ton of bubbles. Instead, I was pleasantly surprised to find that there was minimal bubbles produced from the mixer. I tried it on a project at room temperature with resin that was not pre-warmed. I feel that the bubbles are about the same as if I had hand mixed with a silicone spatula. For certain it is less bubbly than if mixed with a wooden stick. The best part is that it is easy on the hands.
I also liked how simple it is to use. Just click in the mixer head and press the two buttons to turn clockwise or counterclockwise.
Cleanup was a breeze. I simply wiped it down with a baby wipe right after mixing. The mixer part is plastic so I wasn't sure how easy it would be if the resin had time to cure on it.