At the very least, the US has established total credibility with the Iranians in the ongoing negotiations. Trump stopped Israel from conducting this raid in April asking for time for negotiations to take place. He then spends the next 2 months telling the Iranians to cut a deal or "very bad things will happen" and that Israel has the very best equipment supplied by the US. Iran goes with the hardliners and drags their fee. They've now paid the price with their scientists and hard liners killed.
I'm celebrating a successful military raid/campaign that might end up saving millions of lives if Iran is prevented from developing the bomb.
I'm sure there are civilian deaths but most appear to be the Iranian Revolutionary Guard generals.