We had a wonderful experience with Alan and MEISTER Windows.It has been 3 months since our installation (every window and slider in the house) and we are so happy with the quality of the OKNA windows and especially the care and craftsmanship of the installation and customer service Alan and his son provided. I recommend Meister Windows and siding highly, and would use them again in a heartbeat. True craftsmen, father and son team, that actually do the work themselves and care about quality. Hard to find in this day and age. Fairly priced as well. Especially with the worry free job and quality.