They are good folks at Sommerfeld. I would also like to endorse their (yellow) EasySet jigs for setting height on their door making sets. Top notch tool for very little money, and they make the same EasySet jig (red) for similar profile Freud bit sets as well. These jigs account for different thicknesses of stock as well, which can reduce sanding chores later.
Interesting to compare such positive reviews such as this and for Bosch to some of the old name brands that have sold out to big outfits that only want to exploit the name.
The more I do, the less I accomplish.