[jlangevin]

regarding CDSEO, it actually does the same thing as XC SEO, except that it uses categories as if they were folders (which I like):

/category/product.html

Also, CDSEO allows you to personalize each product url however you like. XC SEO is more automated, it doesn't have that personalization feature yet

additionally, CDSEO redirects the old urls to the new locations, to prevent "duplicate content penalization". that's what XC SEO does, again there's no difference

so, if you're thinking CDSEO functions differently to improve SEO than XC SEO, it's only "real" advantage is the /category/product.html feature, which some people argue will worsen your page rank

again, i personally like the category folder path structure, from a usability standpoint, and it arguably provides additional keywords in the url, but many SEO gurus prefer to have the url appear to be in the site root (mysite.com/this-is-a-product.html), as the closer to the site root a url is, then supposedly the more important it appears to SEs

let me know what you think.