The Shark Ion Vacuum is my first experience with an automatic vacuum.  It was a little scary at first. 
There are lots of options. I kept it basic.  The Shark Ion is lighter and quieter than I had expected.  It is easy to set up and use. 
I have hardwood and tile.  The Shark handled them easily.  It even got the dog hair that drives me crazy.
My son named him Rover because it grabs the dirt and comes back! We love it.  My son is messy and Shark “Rover” helps keep it in check.