So, with working with a brand new fresh install of Linux Mint 13 if the installer/LiveCD from the website is not completely up to date from nose to tails then when you install and run you are going to be prompted by Update Manager to update and install certain packages. Which is what happened on my fresh install. However Update Manager seems faulty in it's execution in that it eventually fails to download items from whatever repository it is pulling from, you get some and not others. Additionally I've received notices that installing certain packages are unauthenticated and could potentially allow someone to have a field day with my system (stated with an exclamation mark no less) on packages that Updated Manager deemed trusted and safe to install. I've also had Update Manager, upon failing downloads (hash mash mis match errors and such) completely interfere with my wifi connection making it unusable for anything else. If I try and reboot my wifi connection via reconnecting my wifi dongle my system completely crashes down to a screen full of txt. Finally, by numerous attempts to receive and install packages via Update Manager I somehow managed to get broken dependencies requiring reinstallation of core files.
For any new user coming to Linux via Linux Mint all this trouble caused simply trying to update their system via Update Manager, only downloading and installing items suggested and deemed safe by Update Manager, well...Doesn't actually encourage the use of Linux as a computer operating system. I can only image the potential destructiveness that can be caused trying to update anything outside of what Update Manager has suggested and deemed safe.