My X52 went after 1500 hours 5 months from purchase. I sent Madcatz a message asking whether they could help. They asked me to send a photo of the receipt (screenshot from Ebay) and some photos of the X52, then they asked me to send them back. Two weeks later, I got a brand new X52 Pro in the post.
I didn't want to be without my X52 for two weeks, so I bought a X52 Pro set from PC World before sending back. I figured that £100 for 1500 hours wasn't bad. Now I have two sets, which is very useful for when I want to store my materials in my other account. I can run two PCs side by side to transfer the cargo from one ship to the other.
Be aware that the X52 Pro has different drivers from the X52, so you have to redo all your keybindings, even though it has the same buttons. That means make a note of them before you change. I didn't realise that, so, when I took off, I got in a lot of trouble and got killed by the station.