Finally got my Harimoto blade today. Put on Dignics 05 (FH) and Tenergy 80 (BH), and just finished my training an hour ago.
Some specifications first, blade weighs only 86g despite the larger head size (my Innerforce Layer ALC weighs 89g) and with the rubber on it weighs 183g (2 layers of Butterfly Free Chack II on blade and rubbers, one layer weighs roughly 0.5g).
Now the impression of the rubber, I'm comparing the entire paddle against my Innerforce Layer ALC with T05 (FH) and T80 (BH) since the construction of the blade is basically the same. Spin is definitely much easier to generate, this is observed through my short backspin serves since this way I can minimize push and maximize brush on the ball. What I observed is the ball bounces backwards with more speed after hitting the other side of the table. I also tested with a top side spin serve, with the same motion the ball ended up on the side of the table instead at the corner where I can consistently serve to with T05, and I had to add a bit more push to get it go to the corner. As for the loops, it felt like when I tried out T05 Hard after using T05 for quite a while, the trajectory is a bit higher because of the easiness to generate spin, so I ended up closing my paddle a bit to make it hit the same position as T05, but the adjustment is not as much as needed for T05 Hard. The change in speed of the ball isn't noticeable by naked eye (it might be different but with the force I'm using I can't say for sure it's faster or slower), but I liked how the ball goes flatter after hitting the table since it has more spin.
All in all, I like the rubber, and I'd get it over T05 any day even with the higher price. Reason being I used to play tacky rubber such as Hurricane 3 on my forehand, but tacky rubbers wears me out too fast, since I had to use a lot more force to make the ball go at the speed I wanted, that's why I switched to Tenergy rubbers in the first place. Though the bounciness of tenergy rubbers always bugged me a little, since I'm used to brushing the ball to generate spin and dwell time of tenergy rubbers makes it a bit tricky. With D05 I think I finally found a rubber that fits me, I like how it has the bounciness of tenergy rubbers and also increased the dwell time which makes brushing the ball a lot easier. Is it a game changer? I can't say it is for sure, I need more time with it to get a better feel, but I do like the characteristics it improves over tenergy. Also tbh I don't think the price is that high, if you don't like it because of the price, you are missing out a lot of fun.