Buying from fragrancenet.

So after testing in some stores I'd like to buy a bottle of Creed Green Irish Tweed and Creed Aventus. Fragrancenet seems to have the best price ($157 for GIT after discounts and like $250 for aventus). Is this place legit? Meaning, is there a possibility of getting a counterfeited product? Also, some of the flask pictures for other types of Creed seem to be vintage bottles. Approximately how old exactly is their stuff, and does age have an effect on the cologne?

Is there anything I should know before I place an order with them?

Thanks in advance!

Buying from fragrancenet.