Well to be honest, it does and it doesn't. The function is great, but it looks a bit dated and clunky to some people. Me, I don't care either way, it works fine, so whatever.
Note here that below I am conflating phone app with dashboards, and while they aren't exactly the same thing, you see the dashboards in the phone app. They are for the most part, one and the same except the phone app adds geolocation/geofence and notifications that you don't get in a browser.
The dashboard itself is totally customizable for icon size, the icons themselves, columns, rows, colors, and so on. You can make dashboards for sensors, for lights, or by rooms, or however you want to arrange things.
You can access the dashboard remotely via internet, or locally. In addition, you can use the dashboard in any internet browser (PC or phone), and you can save that web page on your phone screen as a shortcut.
There are options to make the dashboard look prettier. Smartly being one way. There are 3rd party (community based) dashboards too, in case you don't like the stock app or Smartly.
With all that being said, I have moved away from using the phone for most things except an occasional check of a lock or to turn something on/off that I forgot.
With the way you can automate things in Hubitat, you really won't use the phone app much after a while. You will want motion sensors for lights, sunset or sunrise rules to turn on lights, humidity sensors for bath fans, and so on.