We have found that Utility Sheild definately makes a differance in our home. Our home is more comfortable and we are saving money on our utility bills. Not as hot in the summer and not cold in the winter. Also the Power Mizer is saving us money on our electric bill. We highly reccomend purchasing these products through a very reputable and well established company such as Utility Management Association. Also we would like to add that the sales people and installers were very pleasant to deal with. read full review »