Being a young person with ED and messed up hormones, it has worked for me. Though let me tell you it does very little for actual libido and sensation. Of course being able to get it up can make things more enjoyable, but in the end it really does more for her than it does for you, which is not really a bad thing either, considering the fact that it will keep her from thinking you're gay. Aspire, like viagra, is not a true aphrodisiac, it just makes the blood flow and uncontrollably give you stiffies for 2 days straight, even when you're not thinking about sex. This can be a slight annoyance, but the real annoyance for me was the killer headache it gave me, it was so bad it made me dizzy and I couldn't even focus and read stuff off a computer screen. Though I have heard for most people it doesn't do this, if it's an issue for you I guess you could use aspire lite.
For me the headache isn't even worth the sex session just cause of how long it lasts. But of course if a relationship or something is at stake I would bite the bullet. This is just how it was for me and may not mean anything for you though. Give it a shot, it can be handy to have a bottle on access in times of need.
Good luck and I hope this helps.