Pretty interesting. I've owned my laptop for just shy of two years and use it daily. Have a Wd sn520 (oem Wd blue but the exact same) 512gb. I had both cdi and Wd dashboard but uninstalled so I reinstalled both just now to check and only have 6.8tb written on crystal disk info and states 97% health left in the Wd dashboard so I ain't worried. The health is like an olm using distance or in an ssds case the as a main variable in determining life. And even if it was at 50% I wouldn't care. Ssds can go several times over their tbw until they start dying and reallocating bad sectors. Tlc drives typical go 4x the rated pe cycles.