Verdict is still out, however I have only just begun my journey with Octopus. I attempted to sign up online, but let's just say we ran into technical difficulties. Then I called, was put off of signing up by the first rep, called back and was getting much further with the 2nd rep, but had to be put on hold, again due to some technical difficulties. Then a 3rd rep checked in on me still on hold and said another rep would call me back. I finally made connection with a 4th rep who said they had no connection with their own "smart meters" and that I would have to call in, or register a meter reading manually once I moved in. It was communicated that they had no way of determining how much energy is used as they're not-so-smart meters were down. My contract agreement started on the 1st of May, however I would not be moving in until 5th of May. Understanding that I would still be responsible for those 5 days, I wanted to see how much energy had been used by cleaners, contractors etc. to be passed on to the LL. As absolute shame as the 2nd rep I dealt with seemed to be on it, sadly we were disconnected. I was not offered any estimates of course, as they had no access to readings. Troubling to say the least and not how you want to start your journey. But here we are. Hoping it gets better. I'll keep you posted! If it does improve, I will absolutely update with a better review!