Use mine all the time. Have had it for about 6 years now. I have used it as a main coat and a base layer. Used it up at LOTW on med while running out to the houses. By the time we reached the houses, you would shut the coat down, or put on low. I have used in my flip over, and really just have it on when I am heading out to the spot, and by the time that I have my house setup and start fishing, the coat comes off. My battery also has the USB port on it, so can charge my phone if needed. I use this as one of my basic coats during fall/winter. Love the coat.