After installation, the computer starts / switches off in less than 5 seconds, and all tasks run in less than 2 seconds.
Compared to a typical hard drive, this is the day and night!
The Acronis True Image is a real plus license provided by Crucial.
For my part, I reinstalled the system completely, so I do not need, but it's still 50 to win for those who will use it.
The other two positives (valid for any ssd) are noise (non-existent) and the gain on the laptop battery.