A Samsung Evo 850 480GB ssd for my main 4yr old Samsung V355 Amd A8 4-core laptop as a Birthday present. Unfortunately, trying to clone the OS to the new ssd went totally wrong and blitzed the OS completely
, and it took me over a week to recover and get the OS reinstalled (courtesy of the MS and Samsung phone support lines
).
However, now it IS working again, it's one hell of a lot faster than it was before - cost was around £220/$300 US as against around £500/$650 US for an equivalent new laptop.
OTOH, it took a lot of stress and some loss of important data to get where I am now.