I support the school in everything I can and turn up to everything they organise. DH and I usually arrange it so we can both go to parent's eve.
But, after 4 years of it, for 2 DC I don't think I can honestly say anything worthwhile has come from it. They generally tell us things we already know, DS reads well, but struggles to keep focused etc. They never have any specific action to propose, for the school, parents or DSs.
I'm sure it's a drag for the teachers, so why do they do it? Is it just because it's expected/they have to for OFSTED or do other parents find it more useful?