Basically you get a months game time and then goodies for £1 - so you pay £9.99 for your game time (normally £8.99) and get either your booster pack or your Mac items depending on the pack you bought
My first duo with my wife was a Blaster/Controller based around Fire, Fire/Fire Blaster and Fire/Empathy Controller. worked really well in synergy and was a hell of a lot of fun to play - carnage wherever we went