Unfriendly staff, probably one of the most cold people I've worked with. The environment was toxic and uncomfortable. Avanti windows is better, they stand by their product, they care, and the install about 90% of the valleys new build windows. XO windows is not good. Had builders tell me so and they switched over to Avanti. If you're looking for a window company I can tell you XO is not the place to call. They won't return phone calls the managers and women in customer service are unfriendly and unorganized, everything is paper and a lot gets lost. That's a fact.