I really love the Configurable Reports Block.
It's something I talk about all the time at Moodle conferences.
And I was really pleased to meet Juan at the Moodle Moot in Madrid last year
I just thought people in this Forum might like to know about a new 8 week online course we're launching this year called 'MySQL Reporting in Moodle'.
There is a detailed post here in the Reporting and Analytics Forum: https://moodle.org/mod/forum/discuss.php?d=220186
In one of the weeks we are focussing in on this wonderful Configurable Reports plugin ! - probably my favourite Moodle plugin ever
Stu