Definitely, all in one WordPress migration plugin is awesome but it also provides some limitations. Using this plugin you can migrate the website up to 512MB free but if your website has more than this limit so you need to purchase a premium extension for getting unlimited upload size. We will also mention the method to increase maximum upload file size in WordPress all in one migration.
Note: Many bloggers mention some coding methods for increasing file upload limit but I also try these blogger methods but it’s not working so I suggest using a genuine way to increase the file limit.