I'm celebrating my daughters first birthday today so I have to keep it a bit short:
About the serializers: You do need separate serializers from DRF (they are not the same package after all).
As someone pointed out on Github as well, this is depending on Redis 2.8 since it's using Redis pubsub, and I will add this to the documentation.
If you have any questions feel free to email me at: hagstedt at gmail.com. I will try to compile all questions into an FAQ and put it on swampdragon.net.