Wouldn't have one if they paid me. Particularly in current(pun intended) form. Always but always be wary of the promise that it is for your own benefit. Just like the new exciting data protection laws were going to " protect" you and turn out in reality to protect the big businesses and providers instead, but make life crappier for the ordinary Joe. Same with "smart meters". Not for your benefit at all. Just another monitor on you and a way for the suppliers and the Government to be in control of what you use and when. The suppliers would love a way of turning off individual accounts one by one in a controlled way. At the moment switching off whole grid supplies is fraught with problems, not least when switching back on and causing hugely damaging surge conditions. They would love the means to do a controlled switch off and gentle switch on routine and smart meters will facilitate this. They have jeopardised the supply with the renewable energy dream (again thought up by the interfering do gooders and noodle knitters) and now face the prospect of not being able to guarantee supplies. Smart Meters are a smart answer, not for the consumer but the supplier. 2 tier high rate charges at peak times are on the horizon if you have one. That is ok if you want to run your Washing Machine, Dishwasher, Vacuum Cleaner, Microwave, etc. etc. in the dead of night and just wait until electric cars proliferate. There will be even less capacity to eke out.