Very impressed with the quality of the product. Solid frames. My critique is for trying to place the silicone strips-they obviously only work to be directly along the bottom but the photo instructions just show putting them in. It should verbalize the alignment. Also i have used a piece of painters tape on the frame fixing piece once the tension is set to help remind myself to not use it as a lip to lift the frame. Watch videos on how to use the larger frames in the P2S, it is another learning curve and needs new test array done-at least I needed to! Very pleased with what I have bought, am using, and will keep learning as I go.