This is quick and easy to use and it holds the template guides nice and tight. One issue is that it sits above the base plate and screws into the base of the router. This is an issue because the collet will hit the template guide and the cutting portion of the bit has to pass the base of the router, the base plate and the template you are using. If the template is any thicker than 1/4 inch material you may have an issue cutting or trimming the piece of stock you are using.
I like the design, sterdy and we'll built. It was easy to install and use. The only issue I have so far is that they need some slots to help dust to get out and for a little better vision. Other than that no problems at all
The adapter is used with the Bosch templet guides. It self centers when installed; however, a check with the centering post is always a good idea. I installed mine on both my fixed base and plunge base (1617 series router). Both centered fine with no issues. The fixed base installed easily and did not interfere with the duct collection. The only downside is on the plunge base (very rare that this is used; however, I did have a specific use). The plunge base dust collector will not fit over the templet adapter correctly. Just a minor thing as (like I said) not a likely configuration.