In an android marketplace with literally hundred of weather apps, both free and paid, Rainy Days stands out as an exemplary app. The application isn't resource intensive, the animated weather maps it provides are accurate and load quickly and most importantly, it does precisely what it claims. I use Rainy Days in conjunction with the stock Sense 2.1 weather widget. If there is even a chance of rain, i pop open Rainy Days and see if the storm looks like its on track towards where I am or will be. The interface is simple but well designed for usability. I don't know what else to say! It simply does what it claims!