Process was extremely easy, no pushy salesmen involved! Best quote within seconds and no hidden extras. Even offered a discount for having it fitted on a certain day. Ordered online, fitted within 2 days. I had one visit by fitter, then electrician to sort out stats 2 days later (at my convenience). Both guys were very helpful and friendly. I had one issue within a few days of fitting where wireless cylinder stat wasn't working properly. Was sorted within a few days with no problems or extra charges. Highly recommend if you're looking for a competitive, stress-free solution to getting your boiler changed.