Very good keyboard! I bought it 7 months ago and it's all good. I cleaned it once so far, without having any particular problem, only in some points that I don't consider important. Overall, very sturdy and definitely value for money.

The only mechanical keyboard that stood the test of time, without any key malfunctioning.

I have had it since December 2020, my first impressions were very good but after a few days of using it, suddenly both Windows keys stopped working. I overlooked this problem and did not take it for service, but after about 2 weeks the "W" key slightly stopped working along with the "D" key. Due to COVID-19 and quarantine, I couldn't take it for service, so I struggled and left it like that. After a few days, the keys improved a bit but the "L shift" and "v" keys started having issues. I continued to struggle with it, but after another week, the "S" and "W" keys stopped responding once again. Time passed, June arrived, and I decided to send it back to the store for service or replacement. After 1.5 months, I am still waiting...
I would not recommend getting it at all!

*I'm even thinking of getting a new keyboard from another manufacturer because it is most likely to happen again if the models are defective from the beginning.

Within five months and without excessive use (maximum 2 hours per day and not every day), a responsiveness problem occurred with the "D" key and a corresponding (less extensive, for now) problem with the "S" key. I consider it unnecessary to write anything more, as a basic prerequisite for a good keyboard is for all keys to function properly.

I am considering whether it is worth taking it for service or if it would be preferable to throw it away and get a new one (obviously from a different manufacturer)...

Edit: In the end, I decided to take it for service at the store where I bought it, and as soon as they saw it, they told me to get something else of equal value... I think that says it all.

I bought it for 65E. Within 3 days, the "W" key started malfunctioning. Those who are into gaming know that if the basic keys don't work, it loses all meaning. I decide to return it to the store for a replacement. Without much hesitation, they give me a new one. Everything was going well until 6 days later, after moderate use, the buttons started malfunctioning again. This time it was the "S" key and the left key. A few days passed and I noticed that the "X" key would sometimes get stuck. Unacceptable, I must say. After searching on Google, I realized that others have a similar problem. Just don't buy it.

It's worth the money you pay, I think there is no better. Beautiful effects and decent switches, of course for the money you pay, you don't ask for anything more. Oh coolermaster, obsession

He is an engineer and uses blue, red, and brown switches.
Now for the keyboard
Positives
- Very sturdy construction and no cheapness (coolermaster doesn't disappoint)
- For the brown switches that I bought, it has very good responsiveness and is not noisy exactly as I wanted
- The RGB lighting is very satisfying with many modes that can be adjusted on the keyboard itself and not through the company's software, which is not bad
- 50+ million keystrokes durability
- Very long cable

Negatives
- I would have liked the cable to be sleeved, but for the 50€ I paid, it's a very good deal
- It's not full RGB, meaning it doesn't have 16.7 million colors, but it has 6 standard colors, which doesn't bother at all
It also has a 2-year warranty, so you are covered