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I bought my keyboard 5 years ago and it's still in top condition. Just the Z and Q keys, which have become expensive and the letter fades on the key, which turns from black to transparent in the middle (with sweat, I suppose).
What I like about this non-semi-mechanical keyboard is the sound level, but above all its aluminium frame. If it falls, the keyboard is safe, mine fell by mistake on a tiled floor, it fell on the bottom right corner :) the aluminium frame protected it.
This keyboard deserves a good 10/10 for my money.