Window World replaced my windows 7 years ago. We went with one of there higher end vinyl windows and they were 1/3 the price of Champion. I'm sure Champion has a great product but someone is paying for all that advertising they are doing. As a business owner I know how what your profit margin has to be to run tv and phonebook adds like they do. I think my windows from window world are great. They made a huge improvement in my utility bills and are still working well 7 years later. Have never had to have them back out for anything. There may be better windows out there but I just can't imagine ever recouping the extra 7grand that champion was going to charge. My opinion is if someone want to break into my house they are going to find a way in. I don't know if mine can be bowed and opened and I'm not going to try. I am not a window junkie but I know mine have worked great and they were very reasonable.