I've been trying to leech him off for a year now
Now, based on that - I sent a mate of mine a trial key to persuade him to come jam some Aion with us, until he told me that he only received 3 days (or level 7 - which you can get to in 30 minutes). After digging around, it seems that the trial keys are still only valid for 3 days - not 10 - as that announcement implies.
What gives? The amount of time given is nowhere near enough to get a proper impression of Aion - you should seriously consider adding a little more incentive - especially if you're dealing with someone who happens to be attached to other MMOs - I've been trying to leech him off for a year now - and this seemed to be the best chance.