This is a full copy of the Fractal Design Define 7, up to the same materials. They might even produce it in the same factory. It is not Fractal, of course, nor does it have the extras of the Define, but it costs half the money, not to say less.

It has a very good sturdy construction and very good quality.
Visually it is nice and shows good quality.
It has good sound insulation indeed.
It has two silent but weak fans.
It has a good slot for an optical drive, it would be good to remove it if you don't want to use it.
It has a slot on top for two fans or liquid cooling, it could solve the bad airflow it has...
As for the negatives, the case has poor airflow, I think the front door obstructs the air quite a bit, plus the front air filter is very dense, it does keep a lot of dust but it makes the airflow even more difficult.
Another problem is that even though it can accommodate two 120 or 140mm fans in the front, in reality one works properly and the other half blows the air towards the back where the power supply and cables are.
Overall, despite its positives, the case is a fail.
It reduces the noise level a bit due to the good sound insulation and increases the temperature, causing the fans to work harder.
Also, it is a bit outdated and does not have USB type C.
If you bought it like I did, congratulations on the fail choice.
Note: If you only need it for office applications or light use, it is very good.

I wanted to build a smaller midi system and went for this case. Very good and sturdy construction, I would prefer the steel panel instead of tempered glass but due to availability, I went for the glass version (still very satisfied). Plenty of space for GPU (I have a Gigabyte 1050ti Windforce OC), optical drive, hard disk drive bays can be removed for more space and radiators. It is as quiet as they say, the stock CPU fan is more audible than the three Silencio fans I have (the case comes with 2 pre-installed). Good thermals for a closed-type case, but for specific numbers, it's better to check some reviews on YouTube.