I am a technician, so I have seen a lot. It has nothing to do with a range hood of 100 and 150 euros. Solid construction with quality materials. I would prefer the light to be white, but that can be fixed. In terms of noise, it's okay, it can be heard but it doesn't sound like a tin can like most others. It is definitely worth the extra 250 euros.

Replaced a teka type hood that I had many problems with, such as creaking, noise, and eventually the motor... After 14 years, I made a change with the bocsh, which seems to be a higher quality construction at least in terms of assembly.
As for the noise, it is satisfactory.
However, this is hypothetical because the chimney plays a very important role.
The ideal is with a pvc pipe of diameter 150, otherwise 120.
Personally, I had installed a spiral and it made a little noise at the corner. The noise was annoying. I replaced a piece with pvc diameter 120 and the noise immediately improved a lot.
The manufacturer gives a noise level of 67db. So you can't call it quiet since there are others below 60...
For 250€, I think it is a good purchase as you get a reputable quality extractor hood with good overall performance and nice design. I think it's worth buying it...

In general, I am satisfied. Compared to a previous one I had, it is definitely superior in terms of performance and functionality. Its performance is satisfactory, and the position of the motor, which is towards the top, plays a role in this, something that cannot be done with flat ones. The good things end somewhere here. In terms of materials, even though it is Bosch, it is nothing special. It makes quite a noise, especially on the 2nd and 3rd level.