Only brief experiences with both gmvault.org and Takeout, so take this with a grain of salt. Gmvault gets chats as well (I'm assuming hangout chats also). A pr

Only brief experiences with both gmvault.org and Takeout, so take this with a grain of salt. Gmvault gets chats as well (I'm assuming hangout chats also). A pro I see, is with gmvault you can restore the backup to another Gmail account, right from the terminal. Takeout stores chats separately, not in the mbox file. To restore from Takeout, you need to add the mailbox to Thunderbird (or some 3rd party email client), add the account you want to restore to, and then drag and drop emails between them. Not ideal.