As for quality, it seems fine to me. For 140-150€, it could be a little better, but I don't think it will break or damage anything.
The silent red switches are perfect for use in an office or somewhere quiet. The noise is at the same level or even less than those low-quality membrane keyboards you find in a typical office, so the others won't be bothered.

Ducky's keyboards are exceptional! Its silver speed switches are ultra fast, be cautious if this is your first mechanical cause it's going to take a while to get used to its typing speed. It's a white keyboard of course dust will be visible if you don't clean it. Unfortunately a smoker friend used it and it got burned a little on a side, so now it has a brown mark. Maybe if you are a smoker you should consider a darker colour.

The keyboard is very nice, the brown switches sound nice and have a nice feel, but the keyboard costs much more than it should. Take the Epomaker ek68 a thousand times, it's cheaper, with an aluminum base and better quality. The 3 stars are because it is very expensive, otherwise it is very good

It is very good for gaming and smooth, especially this detail that you can change mounts and colors without any program is amazing.