upgraded the drive in a PS4 Pro to an SSD today. I wasn't entirely sure what to expect. I saw reports ranging from "underwhelming" and "not much of a difference" to "best thing I ever did" and "incredible"

Some games it felt like loading was only a few seconds faster, some it felt like the time was cut in half.

FFXIV went from annoyingly long loading times to "okay but not amazing" loading times.

worth it if you have an SSD laying around, not sure if it would be worth buying a new SSD for though