I spent a lot of time looking for energy star rated windows that would qualify for the eco rebates. Finding quality windows that offered great energy ratings and didn't cost a fortune was a hard job. When I noticed that Trillium had windows listed on the government website with similar energy star ratings as the top end ones costing more than twice as much, I went to check out their product at their factory. I was very impressed by the company, quality, and most especially, the price of the windows. I had our installer use the Trillium windows I selected and a year later I'm very happy with the decision. They look beautiful. I save a lot on the monthly heating and cooling bills and I can't even hear the noise from the busy street outside. I've recommended these windows to others and have no quams about do so here. You owe it to your budget to check them out.