Has anyone had any experience with Eurotech Windows? The ER (Energy Rating) is 39 for their Eco-Tech line (the more pricey line) and 32 for their Classic line (less pricey one). They are vinyl windows, but higher end vinyl ones (thick mullions for support). The Solar Heat Gain Coefficient is 0.37 (Eco-Tech) and 0.46 (Classic line). The top line one has 3 panes and the lower end one has 2 panes.
Any experience at all with this company?