OP is in Scotland?
Where we have had (teacher and parent here).
The dreadfullly woolly Curriculum for Excellence (or the Curriculum for Fun as one of its architects, Brian Boyd, wanted to call it.)
The fiasco of the introduction of the new qualifications with no clear examples of work / past papers and the constant cry of "use your professional judgement".
An appeals process (actually, no appeals any more) that is a joke and allows serious errors to get through unchallenged.
The unbelievably useless National 4 which has no credibilty.
The over assessment of the huge number of units (now scrapped) and the vast amounts of teacher hours spent on preparing for and assessing some things over and over again.
Falling standards in Numeracy and Literacy - probably down to the new Curriculum.
Mass end of term truancy in many schools, plus issues that go untackled during term time - but hey, parents are in charge (Until their kids fail))
Pupils in my classroom do pretty well - but then I have management support to set my own (high) standards and ignore much of the nonsense.
But at least we don't have to cope with learning to use numbers instead of letters to determine grades! Lucky us.