For a ESN user, having never tried a chinese rubber, all chinese tacky rubbers need to be boosted even the softer ones.
For an european player, having played only with tensor rubbers, chinese cheap rubbers like Kokutaku (8usd for two rubbers on AliExpress) aren't so different from DHS Hurricane 3/Neo 3 national or commercial. They all have the same feeling: hard and rigid sponge, dead feeling and they are very tacky, which decrease their speed and even the spin on soft touches. What makes them special? They don't have a speed limit, if you hit hard, they are bombs, if you hit slow, with short movements, the ball won't even reach the net. They won't help you if you don't help yourself, they have 0 tolerance for errors, that's why you will have a better technique if you learn with them.
If you buy them for short term improvement in your results, chinese rubbers are a waste of money, no matter what the brand and the version. You need patience and a lot of work, otherwise you'll say that they are the worse rubbers.
I started playing for fun 2 years ago (33 years, completely NOOB level), after a couple of months I made my first combo with a pair of 2 Kokutaku 868 and I improved a lot. In the summer of 2019 I've switched for Rakza 7 and Rakza X and for a month I felt like a god but after 3 months I felt that my technique didn't improved anymore. So now I'm using a combo of tacky Neo 3 on forehand and non tacky ESN on backhand. I have 2 setups which are good for tournaments but I have also a training setup with a 5usd blade and 2 rubbers Kokutaku 868 for less than 8USD. All these setups are from AliExpress and I spent less than 80 usd on them.
I'm still a begginer on amateur level, but I can tell you that using expensive equipment won't improve your technique.
Here I have some recent videos playing for fun with my friends (I play penhold, rare thing in Romania):
https://youtu.be/gB0rCltC3Sw
https://youtu.be/VgmbWsPcX-8
https://youtu.be/v70ThDrlJjg
And here you have some good videos about rubbers
https://youtu.be/jFe9CiNSX_c
https://youtu.be/YkdAxfA_3wE
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