Only been with Bulb for a month or so, seem okay so far but very much as I previously experienced with OVO, the moment you sign up things soon begin to change with regards to prices, etc. They originally offered me a refund as a 'good will gesture' when they admitted they'd got something wrong. The refund was debited to my account. They then realised they were incorrect and took the money back. We were wrong so here's a refund, we were wrong again so we're taking it back. No too sure where the 'good will' is here. In my world, the 'good will gesture' should have been, 'sorry, we've messed up, we'll leave that £20 with you'. Yes, you read correctly, it was only £20 and they actually took it back. Anyway, nothing wonderful to really shout about so far, suggested being far more competitive when I submitted last year's readings but I'm yet to see any difference from OVO.