From the moment I contacted Octopus with a view to possibly transferring, I received a reply within 2 hours answering fully all the queries I had, I had no hesitation joining them as my supplier.
The transfer went seamlessly without a hitch and the service was faultless, keeping me regularly updated.
It has now been one year since I joined Octopus, and have no hesitation in renewing for a further 12 months.
I pay by monthly standing order and simply send my meter readings every month, and within 2 hours I receive my bill/account update.
Never mind the "Big Six", for me there is only one energy supplier, Octopus Energy.