Sears sells Simonton windows. I have installed thousands for them, with very few problems or complaints, in fact I am amazed at how much quieter a house is with the new simonton windows. I've had numerous customers just freak out about the silence inside. Neighbors with loud music or local traffic or whatever. However, I like the thought of the owner of the company installing them, the install can make all the difference in the world. My new motto is "A BAD INSTALL CAN MAKE EVEN THE BEST WINDOWS SUCK AIR", I'm sure you would be happy with the less expensive window, if the installer does a good job!