Excellent rubber for the price. I really like rubbers with a loud "click" sound that resembles the old speed glue feeling, so if you are looking for something like that, this rubber does the job. You get a nice speed glue effect with good speed and spin. This reminds me of the bluefire m2, except with more spin. However, it is not too great for blocking - it's pretty sensitive to topspin, so you have to compensate well and get perfect timing. The quality is decent - it plays perfectly for 1-3 months depending on how much you play, and can withold up to 6-7 months and still perform at a decent level.