We had four window companies give us estimates, and Guida's product and presentation was the best for us. We had ten windows and a sliding door replaced. We already had low/contractor grade windows and they were leaking. This was a mid-grade price with top line product. The installers were very polite and got the job done quickly. We also had damage to our window sills and they were able to repair them as well. I would recommend Guida windows to anyone, we will be using them in the future to replace our front door.