This is not really an article but more of a note for future reference.
So i decided to wipe an SSD drive, and I assumed that using the good old dd would not have been the correct choice.
I was right, and someone (thanks mingdao) from #gentoo on Freenode directed me to this page: ATA Secure Erase.
Basically, when dealing with SSD, it’s better to rely on standard erase feature than doing it yourself.
It took very little (approximately 21 seconds).