The metal portaholder is a really nice upgrade for the Vario, instantly dressing up the overall look and quality of the grinder. The functionality is also a great improvement over the stock plastic one, as the design funnels the grinds directly into the portafilter all while freeing up the use of your hands.There are a couple things I want to point out that were issues for me, but were quickly cleared up after a couple emails to Baratza.-The forks that hold the portafilter in place were too long, and I was unable to get the portafilter to rest directly below the funnel. Baratza sent me the correct shorter forks, and I got them in just a couple of days.-The fit is really tight, and the stock case bulges out the slightest bit because of the spring loaded bearings at the bottom of the portaholder. I went ahead and dremeled two small indentations in my stock case to accommodate the bearings, and now my fit is perfect. This step is not required.-Baratza does offer a full retrofit kit, including a new case that comes with the modifications I made. You can view it here https://www.baratza.com/cgi-bin/commerce.cgi?preadd=action&key=6405