Correct. Can reduce data loss by using Over Provisioning method. Yes it will take at least 7%-10% of your SSD space.

So far i have came across Kingston & Patriot 240GB having same SATAFIRM Error. Cannot flash the problem away with 3rd party method. Some of them say can. Maybe it depends on board revision. But i could not do it. End up claim warranty due to the drives being just 2 years old.

Nowdays i don't really care about drives being made by super cap ayam or expensive brand. If you are giving life to new laptop of desktop using SSD, just buy the ones you feel comfortable with.