electric winch

I purchased a place on the water and it has a rail system (like train tracks, with a cart that holds your boat. Its about a 20% incline up from water. Theory is the cart is in water, drive boat up on to cart. Then electric winch pulls cart and boat up out of water. After inspecting the rail...

Are cheap electric Chinese winches any good? This season's boat is heavier and my first sterndrive on a bunk trailer and I'm getting "lazier." First, maybe an electric winch (with back-up handle) is not more potential trouble than it is worth. Second, price and quality don't seem to be tightly...