Want to make your home smarter? My two favorites are simple dimmer switches for nearly every light and electronic cypher door locks.
Turning on the bathroom light at 1AM with a dimmer let's have just enough light to hit the toilet, but not so much that you are blinded and woken up. The porch light has one too. I have the option of lighting up the walkway like a runway when needed, but most of the time it is just bright enough to make it up the stairs without tripping and doesn't annoy the neighbors with lots of glare, nor spoil the nighttime view. The ability to adjust the lighting to the task and mood makes the house feel more responsive to our needs.
The electronic cypher door lock. I can't sing the praises of these loud enough. I carry 1 key, my truck key and that's it. My family all have their own code to get in, set to a number they can easily remember. (I live in Florida, they tend to visit a lot when it's cold.). Visitors and roommates get a code when they need it, and when they leave I delete theirs while leaving all the rest intact. We use mechanical cyphers at work and I have electronic ones at home. They both have their issues (price and batteries) but they both work fine.
My experience with all the other forms of home automation, were items installed by my brother in law. My sister, their kids, and anyone who was visiting had no clue how any of it worked, only he did. After 5 years most of it was breaking down, and the new stuff wasn't compatible with the old, so we spend this last Christmas break tearing it all out and going back to more robust proven tech. (aka standard dimmers/switches)
The only thing I see a problem with most of it is backwards compatibility and cross manufacturer compatibility. You pretty much have to commit to one set of tech from one company, and then either have to gut the whole thing 5-10 years later or live with a patch work system.