If you install this plugin first and then install the blog plugin you will encounter a bug. I think that this plugin forgets to check if the right columns have been created for the blog plugin. The result is and error message when saving a new blogpost and when trying to remove this plugin:
"SQLSTATE[HY000]: General error: 1 table rainlab_blog_posts has no column named seo_title"
you must be run this command after installation
php artisan plugin:refresh anandpatel.seoextension