The consultant who came to my home from Window Nation was Nikolay Ten. He gave a thorough and informative presentation. Mr. Ten was professional, polite and had a good knowledge of the company’s product. I only wanted an estimate. However, because of his knowledge of the product and presentation, I decided to select his company. I had received an estimate from one of the top window installation companies in the area but decided to use Window Nation because Mr. Ten not only demonstrated the benefits of his product but he was also willing to work with me. I was able to see from his demonstration how superior his product was. I will definitely call Mr. Ten for additional window purchases.