I reviewed several different products before deciding on my Prodex purchase. Being a swimming pool cover contractor I noticed the insulation layer in the Prodex product was the same stuff used in the commercial pool covers you will find at your local High schools/Gyms & Country clubs. The three days it took to erect the 30 x 45 (24FT high) building the temperature was 105 degrees outside. The temperature inside the building was 15 degrees cooler. The insulation looks neat and clean. Shipping was quick and easy. Product arrived in good shape. I would do business with Insulation 4 Less again.