I believe you should check out more than one brand AND more than one source AND more than one contractor. Always be an educated buyer. Get the ratings on the windows when you visit the store or showroom, i.e. the AAMA structural rating and the NFRC energy rating. Low end windows and patio doors sold in most home centers will NOT repel water when the wind is gusting 70 miles per hour. If you have the money, always get Low E coating and Argon glass, as it makes the glass twice as energy efficient.