Bests & Worsts Reviews from Amazon

I purchased this device through my son (he has Amazon Prime). It arrived yesterday. I installed it without any problem and I now have 12 hrs worth of data. So far it has been a very good experience. I'll update my review as I gain more experience.' Looks like I have about 400 watts on all the time. That's $400 per year! I've got to track that down first. The architecture of this device works very well for me. Rather than sending the data to a dedicated device, the data is sent over the internet to a server in the "cloud" where it can be accessed by any device with a web browser. Thus my laptop and tablet serve as the data viewing device. This means I can carry my tablet around the house as I turn stuff on and off identifying how much power each device uses. Update 7/17/14 Measured power consumption of the device itself is 1.4 Watts. I'm working on two strategies to save power. a) find out where the 300 watts of "always on" power is coming from, b) experiment with my AC programmable thermostat settings ( e.g. is cooling the house down in the early morning better than just keeping a constant temperature?). Might I say: a) a very good job on the myfreemonitor site. Data viewing options are very useful. b) a very good job on the user manual. c) customer support is first rate. I like this product Update 7/20/14 I discovered we had a chest freezer runny constantly. The side ventilation vent was blocked. We should save about $50/yr with the freezer cycling properly. A and B legs read 5-10 watts with no sensor. I get 20 watts with no power on one leg. I can detect a 13 watt cfl. The sensitivity appears to be about 20 watts +- 10 watts. Assuming the unit is calibrated for 200 amps (23,000 watts) full scale this is about 0.1%. Pretty good. Update 9/10/14 My first full month bill after installation was for 852 kWh as measured by my utility. As measured by this device was 889 kWh. Pretty close. Last year was 1507 kWh. So by focusing on my consumption I reduced it by more than 600 kWh (~$100). Update 7/16 Still working great! My actual bill for July was within $1 or that estimated by this device (i.e. 147 vs 147.50).