Will members atill be assigned to the relevant User Roles when using MemberPress WooCommerce Plus?

Yes! MemberPress WooCommerce Plus does not change anything in the user roles assigned by MemberPress itself. You need to first make sure you have defined the relevant roles inside the MemberPress membership. You can find it by editing the membership and going to the advanced tab: Screenshot: [caption id="attachment_1906" align="alignnone" width="680"] MemberPress WooCommerce Plus - User Roles[/caption]   When a member is buying a WooCommerce product, he is also added to the user roles defined in the MemberPress membership product, just link in any regular MemberPress registration. This is no different if the member was registered using MemberPress itself.