We chose to go with ecoline after the salesman came and spent 2 hours doing our quote. He reviewed each window with me, describing room airflow, window layout, openings, and various options and cost factors. All the other companies I requested quotes from neither came to look at the windows nor offered advice on the type of windows. Another factor for us is that this company manufactures their own windows. This removes the scenario of the buyer getting stuck in the middle of a lengthy fight between the manufacturer and the installer pointing fingers at each other when a window installation goes wrong. The installation was booked about 8 weeks from when we ordered (during peak season middle of summer and for a total of 11 windows). I was told that installation would take two days max. When they only got four windows done in the first day I was concerned about them finishing on time however they were super efficient and productive and did finish all windows by 6 PM on the second day. Both installers were friendly and knowledgeable and the work they did was top-notch. All of our rooms were cleaned and vacuumed and there was no junk left outside the house either. All of our old windows were taken away as well.