I have had a Hydrawise controller for several years and could not be happier. I actually bought from the original owner of the company before they were bought out by Hunter and did my own install replacing the original controller. Anyhow, you can control your zones through your smartphone which is very convenient and you can access via your PC from anywhere.
You can set up various parameters for watering such water more or less based on temperature, precipitation and wind. I use my own station data that I send To WU along a neighbors data and my local airport for my weather data.
There are also various reports you can run as well. I would buy again without hesitation.
Greg