I found Django-RQ far simpler to configure than Celery. Given that I'm using Redis for caching anyway, it also removed RabbitMQ as a dependency which Celery basically requires.

Django-RQ's job decorator is basically a drop-in replacement for Celery's task decorator. Django-RQ's built-in Django admin app is very nice.

My Celery usage was pretty simple (mostly background email sending and PDF generation) but for those use-cases Django-RQ has been a very good replacement. Your mileage may vary of course.