After installing en settin up some thing I was pretty glad with the component but when I was testing and setting up some more things the problems came up. I asked the support team for answer, they answerd some questions but the didn't satisfy me. I use it with virtuemart but showing the category page is 6 times slower than not using the extension. Also when I have enabled the extension I am getting duplicate canonical urls on the manufacturer category page, not good. I am not getting answers on the forum as on the payed ticket system.