we used these for an enclosed front porch with a variety of storm window sizes. Its a south facing sun porch so the blinds will hopefully reduce light in summer. Since they were available in 1" size increments, they were almost as good as custom sizing which would have cost >>$100 per blind. The quality and workmanship in the blind is great -- no flaws and good materials. Nylon cords. Installation design is solid and rapid; each blind takes 4 screws to mount (substitute short drywall screws for ease). The wing nut hardware was pretty poor however (Asian). About half the blinds had to be trimmed which is fine if you are within 1" larger than opening -- we experimented with a table saw and a set of long-jaw industrial sheet metal scissors (Wiss). The saw tended to splinter the bamboo and was less even. Use the scissors while the blind is pulled out taut. Does a fine job. The nylon pull cords are too long and have to be shortened, which is easy. Total installation time 10 minutes without trimming, 30 minutes with trimming. They look like a million bucks and work well -- have to see if they block light correctly in summer. Natural color variations across and between blinds, but it is very acceptable. For $300 we did a 30 x 8 porch, and I don't think we could have found them cheaper than Overstock. Very satisfied!