We bought a Jayco trailer that has an electric awning and I wish is we had a manual awning. The power awning is great for putting out and retracting, but that where it ends. The power awnings have a poor reputation for handling wind and rain partly to do with their design and partly to do with their strength. You can't tilt them down or anchor them to the ground.
Cleaning is another problem. I got spoiled by having a Hi-Lo with an awning that I could be cleaned by standing on the ground. The power awnings require a step ladder because of the inability to drop them down like the manual ones.