Sugarcreek are owned by Prescion, a pretty large Door company. They are low-medium grade windows. Which other windows did you get quotes on?
Low-medium grade? Hmmm... I started looking at these because they were highly recommended to me. Why do you consider them low-med?
The other quotes I have received are for Soft-Lite Imperial LS ($2500) and Alside Excalibur ($2200). I also received a quote from a local company that manufactures its own windows.