Instruct: Classify Amazon reviews into positive or negative sentiment
Query: TERRIBLE PRODUCT! DON'T WASTE YOUR MONEY ON IT.

I was given this set as a gift; otherwise I would have read its reviews first and would not have purchased it. The pens never worked with any of the different nibs. At first, no ink would come out, then small, thin streaks would come out, and after continuing to press to get the ink flowing, way too much ink would gush out running all over the pen, paper, my hands, etc. I tried using all 5 nibs several times with different ink tubes and had the same result every time. In addition, out of all the ink tubes I tried, 4 of these were dry even before being used. Needless to say, it ended up being a very frustrating experience and a complete waste of money.