Since this was introduced last year there was a significant reduction in the noise in my area. It didn't stop completely because there will always be idiots around but it wasn't bad as before. I hope for the few remaining people will be recording them and sending it to the police.
Fireworks isn't as bad as it used to be but I hope the government takes it a step further and make noiseless fireworks. They should with all the crime and gun shot sounds.