I've always worried about Ofsted results because I've seen how much more effort teachers have put into their work during a review, and the change can be significant compared to the average day.
@Fuppy, I'm a school governor. Good school leaders generally know what grade their school is before the inspection, based on their own self evaluation and their own data. Teachers can't really influence things much on the day of the inspection unless their school is "cuspy", by which I mean borderline between two grades. Our school was on the cusp of being outstanding and our self evaluation was Good+ so the inspection could have gone either way. Our staff understandably put in every effort they could to edge it in the right direction. A different inspector on a different day might have given us outstanding, but the one we got didn't. He focused on the one negative that we self-identified, found one teacher (an NQT) whose lesson required improvement, and then, after a bit of rooting around, added a third development point (there needed to be at least 3 to edge it down) that felt like it was an "off the shelf" negative that could be applied to any school if you needed it to. Nobody at the school agreed with the third point, but there wasn't much we could do about it, despite lots of evidence to the contrary being produced. So we got a Good, but it still reads like an outstanding report with a few relatively minor negatives. We got outstanding in 2 of the categories, but not all.
So my advice would be to read the report in full, read between the lines, decide whether the negatives matter to you. If they do matter, talk to the staff about what is being done to improve in those areas - the School Development Plan will need to address them before the next inspection to get a better grade.
If the report was Requires Improvement, bear in mind that sometimes triggers an exodus of good staff and difficulties recruiting new staff, leading to a downward spiral. The opposite can also be true - the schools with the shiniest Ofsted reports can find it easier to recruit better staff as they get more applications.