As of now, this isn't very useful. I experimented with it in a couple of tournaments, and really...everything this card can do, other cards do so much better.
If you can't steal an agenda right now (like NAPD Contract or something advanced after Utopia Fragment was scored), Imp lets you trash it. To make matters worse, upcoming card Film Critic will let you basically steal it for free. Plus, playing a Sure Gamble would give you the money to steal it anyway.
But how often can we live the dream?