Day parking/Itzehoe Shuttle reliabilty

Hi Metalheads,

This question goes out specifically to those who used the day parking in Itzehoe after the day parking on site got closed because of the conditions, as I didn't really read much about it. Only questions on the schedules.

How was your experience with the shuttle from/to Itzehoe? Was it reliable? How long have the waiting times been on average? And were there enough busses later on in the nights around 1/2am? I know there is an official schedule, but unofficially they just run once full without schedule. Did that work out well?