Since we are watching on an field stone patio, that isn't perfectly level, I have had to do some adjustments to just get the picture straight. Once that is done, I am on to the projector.
I do have a couple tables out on the patio for drinks and one of them is the perfect height for the projector. I did have to prop up one end with a couple magazines to get it even with the screen, but I will just have to live with that issue since I chose field stone rather than pavers a long time ago!
I know this sounds like a pain, but it takes maybe twenty minutes for the whole process.
Sound and Source
As I mentioned, we are using a Chromecast and I am luckily get a great signal out in the yard with the Orbi wifi setup I am running. However, if I decide to use my receiver as a source for audio, I will use one of my AppleTV 3 devices that I typically take on trips. This will allow me to send the audio wirelessly to the receiver via Airplay. In other words, more experimentation before I find the best solution.
Is it worth it?
All that being said, we really like to be outdoors. We have a pool and we entertain in the summer more than any other time, so it will be something we do when we are entertaining for sure.
Also, I mentioned some of the audio issues before and no matter which solution I come up with, the movie won't be as immersive as it is indoors with a surround system. I could get a decent sound bar, but at the levels we have to listen to it, it won't be the same as watching inside. As a result, this is more for watching romantic comedies, nature films, and other movies that don't rely so much on the sound system.