Abysmal. At first, Octopus were great. Then I moved home, giving them the correct notice, new address etc. That's when it all went wrong. They spent ages transferring the account, set it up incorrectly, kept billing me for absurd amounts, stopped taking the direct debit I had set up and failed to respond to my complaint for months. When they finally did after I had already gone through a lengthy complaints process prior to this which was mishandled with the agent simply disappearing, the agent this time did the same and, when he reappeared, claimed I had agreed my complaint was resolved. I hadn't and I have just had to email them yet again pointing all this out. It's an ongoing mess costing me a huge amount of money and time. I want this resolved once and for all.