And I am SO tempted.. My suggestion to you, is when you quit, make sure that you actually get rid of your cigarettes. I didn't do that, so knowing that I have some sitting in my garage is making it hard for me at this moment. But they've been there this whole time and I haven't had any yet.
I have been drinking my Quit Tea in the late afternoon and early evening, as it does, indeed make me tired. It really does help with the cravings, but I can't be drowsy during the day while I'm taking care of my daughter and family. So I wait until I can just relax for a while. The first day I took it, I had my husband home with me all day so, when I drank three cups, and when I dozed off and on through the day he was here to pick up the slack. It's still great, and I still really recommend it, but make sure that you either have some coffee after, or are doing it when you can just relax.
I also believe that products like this affect people differently. So I suggest that you try it. It does exactly what it says it's going to, but the extent that it does for you might be different than it was for me.