Nexus 4 Flash Memory Lifespan?

Hi everyone,

I just wanted to know how the flash memory's lifespan is on the Nexus 4. As someone who does A LOT on my N4, I always become worried that the memory will degrade faster than anyone else...

So I wanted to check: for those who have had the N4 for more than a month, and especially those who have had it since last year, how is performance today? Is it laggy? Or just as fast as it was when you bought it?