In case you didn't know, the court retroactively voided these agreements. EU-US data transfers have been illegal for around 25 years or so thanks to that. People can sue you and win, even though the data protection authorities don't do much.
Can I get my data back? Can I retroactively avoid surveillance by US intelligence services? Has the data transfer stopped?
If the answer is "no" eact time, then please explain how the court ruling impacts me.