Yep,had one put in for gas and electric some months ago...you can have the display on or off if it annoys you sitting in your room all lit up glaring at you...As I understand it,they can if they so wish just pull the plug and cut you off if you dont pay your bills from where they are sitting in their office...they are very clever as you can see straight away what you are using and how much it costs you...minute by minute//hour by hour //or day by day..Not that I do,but at first I did find it fasinating just to check it from time to time..Now I am use to it I only check it out of interest to see the usage and cost....The other thing is that if you do not want to pay by standing order you can go onto the net,check into your account..(british gas you can ) and then pay into your account with your debit card at any time you want to..So if in the winter your costs are rising fast,then just pay some into the account so that when they bill you it will not be such a big hit as you have already paid some off...also it stops them collecting you direct debit all year round and keeping your hard earned dosh in their bank while it could be in yours...Anyway each to their own but for me personaly it works well and I wouldnt be without it now,