Started really well but then the massive overestimated bills started. Once was a shock at £1500 bill, took ages and several photos of my meter before they believed me that I had not used that much electric. But the second (£1200) and third (£900) time was enough to make me switch companies. Actual usage was about £150, if I was not too savvy, this would have been really stressful. Also prices have really hiked, my meter standing charge is now more than my electric costs. Otherwise does what it says on the can, supplies energy and sends you a bill, just check they are not estimated!