Example configuration should use setq

Hi there!
First of all, thanks for the great packages and interesting Reddit posts.

I've tried org-super-agenda on a couple of occasions and have given up because for some reason as soon as I change the agenda view--for example from week to day--the Super Agenda view disappears.

I cannot get it to reappear by calling org-agenda-list, or refreshing (r) the agenda. In fact, I need to close Emacs completely and reopen, and then it works again: once.

Steps to reproduce:
1) Install org-super-agenda from Melpa.
2) Paste the following code into my init file:
(let ((org-super-agenda-groups
'((:auto-category t))))
(org-agenda-list))
3) eval-buffer

On the other couple of occasions I tried different examples and fiddled around for a few hours to no avail.

I anticipate something else in my configuration must be causing this strange behaviour but I don't know how to go about finding it except through an arduous process of disabling all the init and re-enabling one bit at a time.

I thought you might have some experience with this or could at least point me in the right direction.

Thanks a lot!