Apart from a delay in moving to Moodle 2.0, we have always followed Moodle verry shortly after release since Moodle 1.08. Change usually causes a little discomfort, so I'm used to comments after an upgrade by teachers and students.
School is back in operation since 2 weeks, running on Moodle 2.3.2 at the moment. The response of the teachers up to now has been amazing: everyone loves the new activity chooser, the drag and drop functions, the improved file picker. Lots of positive response I wanted to share here as a moral support for the people who make it all work.
For students we got rid of the old Windows shared folder for document storrage and we only use the private files area in Moodle. It is getting used to downloading, changing, uploading instead of open and save, but the extra of having access to all your documents everywhere allways on any machine, is much appreciated by the students.
So thanks a lot Developers for this brilliant job.