I have been on Agile since October. Some months brilliant, some months painful. Here is my breakdown by month with cost comparisons against the standard variable rate.
October: saved £28 vs SVT. November: saved £41. December: COST me £19 more (high wholesale prices over Christmas). January: saved £67 (shifted washing/dishwasher to overnight). February: saved £52.
Net saving over 5 months: £169. Worth it if you have flexibility on when you run high-draw appliances. Not worth it if you cannot shift usage — the peak prices are brutal.
Happy to answer questions. Key tip: get the Agile Octopus app and set automations for overnight cheap slots.