Now for the cons: 

The weight is a huge issue for me.... the BH chiquita flip (which I rely on huge) feels a lot harder and I'm recovering slower between strokes, especially when my arm starts to get sore. Borrowing power from the other player is also really difficult as it absorbs a lot of the momentum, which requires you to hit the ball hard every time you need a fast ball. I feel that with this bat you're forced to play slower and more powerful, and is not suited for speed based players. So for example, instead of doing BH pressure play to win the point, I found that in rallies I tended to use even more abbreviated strokes to just block/counter with spin, and wait patiently for a weaker shot that I can just simply kill with my FH. For opening loops, I found that medium speed/spin loops really suck with this rubber, you really need to think of "overwhelming" your opponent with power and spin instead of just keeping the ball in play...otherwise a lot of your balls would just die in the net or be slow balls which your opponents can tear apart easily. So for opening loops you really have to get down low, use your legs, rotate your waist and load the ball up with as much spin/speed as possible. The next shot is more often just a simple block/counter, it's just too hard to do continuous looping with this heavy and dead'ish setup. Away from the table it has plenty of gears and power if you can generate them, but if you're an amateur scrub like me you're probably on the back foot against someone of equal skill/strength who use tensors/Tenergy (i.e. majority of the other club double-inverted players), the advantage they have almost feels unfair....