Costco had some sunsetters last summer. Almost bought one. Then with some investigation I found that the ones at Costco were NOT water proof. Something that is really not mentioned. I played around with the controls and hated the way it opened/closed and raised and lowered. During all of this I checked my HOA and found that awnings are expressly prohibited. I built a standard flat patio deck and was much happier for the experience. Wood cost more but it will last longer than the 5 year warranty of some of the awning products. Before you buy check the price on a replacement fabric, be ready for a shock. I was. The replacement fabric was almost the same price as the new unit.
Look around locally and talk to people that have awnings installed before you buy.