Whats ONLINE MULTIPLAYER CONSOLE GAMING like?

im from iraq i lived in jordan all my life and i moved to finland a couple of months ago and i have never played online i had a xbox 360 but i never played online with another person and now i have a ps3 320gb and move and cod mw2 medal of honor limited edition gta iv complete edition resistance FOM fifa 08 yea and i have a usb internet 1 mb so i cant use it to go online but maybe in 5 months or so ill get a router and use my ps3 online so my question is whats ONLINE MULTIPLAYER CONSOLE GAMING like