I've had mine now for four days and done roughly 500 solves on it. I'm completely underwhelmed. I've tried all different tensions and lubes.
When I was assembling mine, I thought it looked kind of similar to the Type C IV mech. They look, feel and even sound similar IMO.
The looser I set the tensions the faster it gets, but the trade-off is the corners twist and pops become more frequent. When lockups happen, it gets this giant bulge and when it pops it explodes.
If I want to avoid twists and pops, I have to tighten the cube up, but then the cube becomes super slow.
It's one of those cases where I could put time and effort into doing another 500 solves with the hopes that it will get better, or just go back to my main (Zhanchi).
But reading through the reviews, people seem super happy and say it's faster than their Zhanchi. I must have received a bad one because mine is a total downer.