The install was done quickly and efficiently, and the window looks great. I really noticed a difference in the room. It was warmer last winter, no drafts, and it's cooler in the summer (for a west facing window).
I had an problem with the hardware mechanism. When the owner, Igor, was made aware of the issue he called me immediately. We schelduled a repair for the next day. Igor came to the house himself to ensure the job was done right. The frame was adjusted and they completely replaced the hardware mechanism.
Igor demonstrated that he cares about his reputation and he stands behind his product. He told me that if I ever had any concerns to call him personally and he'll look after it.