I've had mine steeping for something like
three or four weeks now and I was just about to give it a go.
If you could give me a few minutes I'll return with a quick review for you.
EDIT: I will say that I did try this when it first arrived and then again ~2 weeks ago. The first time the flavor just wasn't really there, so I decided to let it steep. The second time my damn carto wouldn't even work. It was one of the weirdest issues I've had. I could definitely hear it crackling and feel it getting hot, but I couldn't suck any vapor out. I couldn't suck on it at all, really. It was very strange.