Strong mouse with severe weakness

I was looking for a mouse that should work on as many surfaces with high precision (eg for Shooter) and ended up on the recommendation in the MX.
Buying I have no regrets, because the mouse is highly precise, very good to lead and for me also pleasantly under the (legal) hand.
The tiny Logitech Unifying receiver is plus a real innovation and works very well.
I run the MX with batteries that last long and can be recharged via the included USB cable during the operation.

Short and sweet: I am highly satisfied in principle with this mouse.

Nevertheless, she gets me a bad review and this is due to the build quality of the left mouse button.

My first mouse sparked after some time on a single-click double-click (bouncing of the contact). This phenomenon occurred after about 1/2 year and the mouse was exchanged without difficulty.
Since I found the mouse well, I've taken the same again.
The same problem occurs after about 2 years again. Thus the mouse is nearly useless.

How can I see other reviews, it seems this to be a series phenomenon (planned obsolescence?).
But the mouse is simply too expensive.

I'll try to return them despite the guarantee sequence.

Would not this built-use flow, this mouse would be perfect for me.

Addendum:
in the meantime I have been given the Performance MX :).
This mouse like it even better than the previous one, but this has the same error after a few months of use on.
Today I have contact with the Logitech added customer service and hope that this can also trigger an exchange for the same device.