I'm very happy with the eyedro. I bought the wired version, and had to snake an ethernet cable from the router to the basement, but I've heard from their support team that the wireless version works fine in houses (signal can go through walls, multiple floors, etc). I would recommend going wireless to save you the trouble of drilling holes in floors, and running 100' of ethernet, running ethernet through conduits, and stapling the cable to basement ceiling walls. It took me about 2 minutes to install the eyedro, but 2 hours to run an ethernet cable, go wireless.What I love about the eyedro, is that I can see how much energy the house is using in real time. I can walk around the house turning things on and off, and my phone shows the difference a second later. So, this turns saving energy into a game. Before bed, when I'm checking that all the doors are locked, I also pull up the Eyedro current usage meter on my phone, and check that we're only using the baseline, which is about 200 watts. If its higher than that, that means I've left something on: lights / monitors / computer in the office, lights in the basement. Also, I've been replacing all the lights in the house from incandescents to LEDs, this is a huge and easy was to reducing energy usage. (I buy my lights from IKEA, very well priced). Next, I'm also hunting the house, to try to find "phantom energy" users. i.e. things that draw a load, even though your not really using it, think stereo, vcr, tv, coffee maker. Overnight, my house used a minimum of 170 watts, meaning, once the furnace fan turned off, and the refrigerator took a break, and all the lights were off, things in the house that I'm not using still pulled that much energy. 170 watts of phantom energy, costs about $160/yr at my energy rate, and the eyedro dashboard gives you all of this information in real time reports. You can view the eyedro dashboard from your laptop, or from your phone. It's not a native mobile app, but a mobile website, it works fine. There are a dozen or so reports or dashboards. It gives numbers and graphs, not at all complicated to figure out meaningful events. (i.e. this spike is probably the furnace fan kicking on, this spike is probably the microwave, this spike is the vacuum, this is the lights in this room turning on/off, this the tv).Also, we took a trip, and I logged in to see how much energy we were using, and we must have left in a hurry, because the house was using 900 watts baseline, oops. If your online gone for a few hours, thats 700 watts extra * 10 hours = 7kw * $0.10/kwh = $0.70 that you paid for nothing, so no big deal if your gone for a short duration, but if you were away for a week, with all that on, then oops. I'm considering adding smart light switches and outlets, that I can turn off remotely. I'm thinking Lutron Caseta for the lights, and Belkin wemo for the outlets. I'm not how long the ROI, from those things would take, but personally, I'd like to save energy. Also, when using energy, is something is a very short duration usage, such as a vacuum for 5 minutes, or a sander for 20 minutes, that doesn't cost much energy in the grand scheme, but things that are always running, such as lights, fridge, furnace fan, office, that's where you'll want to pay attention to usage.The next thing I have planned for eyedro, is to take a look at how much energy my appliances are using. I could see how much energy the coffee maker uses, the refrigerator uses. Eyedro doesn't have the ability to single out individual appliances, it just measures the whole-house, but, at 8am I started the coffee machine, and it used energy for 2 hours. The refrigerator has all of these cycles, that is pretty much continuous throughout the day. So, I could compare them to newer models that use less energy. Maybe, just pour my coffee into a carafe, or get maker that brews it into a carafe, and then turns off.Down the road, I'd like to add a solar panel electric system to the house, maybe. Before then, I'd like the house to be efficient with usage, so that I won't have to buy as expensive of a system, and eyedro is helping me to steer that direction.Also, I was having issues with our internet, and since the eyedro is always uploading data to the cloud, whenever the internet would drop, I got emails that eyedro lost connectivity. Thus, I had data to tell my ISP that the internet had been flaky, and they replaced the modem.Conclusion: Its a nice toy to show off to others, but it gives you data, that helps you to take action to reduce your usage, to ultimately reduce your electricity bill. Its not just turn off the lights because I said so, but this light is using this much energy, and this is how much its costing us per hour. Lastly, if I were to buy this again, I would spring for the wireless version, save yourself the hassle of running a cable to your basement.