I am currently playing with it. It is a really good rubber. I am using it with two additional layers of Falco long booster, because the 39° Version (factory tuned) was too hard for me. It is a rubber with all important chinese characteristics. At the table a beast. Very much spin in serves and topspin, flipping is easy. Overall ball control is very high, but a clubmate of me using ESN rubbers said it's ''ungrateful''. Blocking is really fun, because of the metallic sound it produces. I am using a Dignics 80 on my backhand and must say, that I like the Jupiter for my forehand more. Attacking over the table is easy and very dangerous. A friend of me said the ball is going down very fast. This rubber has a medium-low throw which gives a lot of security for hard topspins. From mid-distance attaking is possible, but the loop must be executed with good speed and technique. I don't feel like this rubber can bottom out. I win many points with services. Spinning the ball is very easy. The Quality of the topsheet is very high. It is under a lot of tension. If you use additional booster I recommend waiting until the rubber is completely flat. This takes about a week. You don't need to tense the topsheet additionally. Otherwise regluing is a good idea.