I bought it as an economical solution and for amateur use on 9/7/22.
I received it on time and everything was fine up to that point.
As for its positives, I can say that it is made of very good material and construction quality, and it fits perfectly on the machine, which would have been flawless if it didn't have a functional issue.
Now, onto the negatives.
Yesterday, on 26/7, I tried to use it.
To my surprise, I found that the chain guides fit easily on the blade only in front, on the gear.
At the back, it was a bit more difficult.
In the middle part, on both sides, only with strong pressure.
I don't know if this is an isolated case, but those of you who are interested in buying it should be prepared to return it or, if you have skilled hands, open it very carefully with a thin wheel, at an intermediate speed, and with frequent application checks.
That's what I did, I opened it and it works.

But as a precaution, I DO NOT recommend it!

P.S. The two stars are for its few positives and to give the manufacturer incentives to try harder!