Over time, I have bought USB sticks from all (more or less) companies and this one has lasted for years and years and I have NEVER had to format it.

I am always talking about the 4GB one. If you buy the 16GB and 32GB ones, know that they will break often.
Buy the 4GB and 8GB ones, guys, so you don't cry for your money.
An employee at a well-known electronics company gave me this advice:
the 16GB, 32GB, 64GB, 128GB ones break so easily and often.

The 4GB one, personally, I have had it since I was a student, it's been 10 years.
It works as if I bought it yesterday. Fast and secure.

It is good and fast at first, but over time it starts to slow down until it simply asks for formatting every time you try to transfer something in large sizes, approximately 10-12GB

It did not last for the 2 years with a very mediocre frequency of use.
Now whenever I connect it to a computer, the data read/write indicator light is constantly on and the device is recognized as "usb disk 30x", without access to the storage space.