I do not like the fact that I have NOTHING in my administrator section of the website...with no errors reported from jupgrade. My frontend of the site appears to be migrated, however logging in to the backend of the website reveals there is nothing there! Just a header stating ADMINISTRATOR, but no navigation menus, no admin modules or components, nothing. So that pretty much renders this component useless for me.
I went with another commercial migration component and it worked well, but it did not migrate kunena which I will now have to figure out how to do. So free migration one sort of worked, paid migration component worked better...but no complete migration solution yet.
I think most people have issues with the images not being the correct size and @ 72 dpi. The latest version of this product I eventually got to work in IE8 and FF after several hours of trial and error, but it refuses to play nice in Safari.