Instruct: Classify the given review as either positive or negative.
Query: Better than coffee

I tried coffee, I tried 5 hour energy drinks. When I need to focus at work, this really helps!It did make me feel a little strange at first, but I don't get that feeling anymore. Fortunately I had read the review about the strange feelings, so I took my first few pills during the weekend. When I took the first pill it made me feel weird, but I was noticing details about things that I have never noticed before, so I thought it was doing some good.Now I take it about 2 or 3 times a week, and sometimes twice a day. I am very happy that I stuck with it because it really does help and there is no burnout feeling afterwards.