Simple, useful, has a lot of functionalities/options and is very visually appealing (which was very important to me). I give it 4 stars instead of 5 stars only because I believe it misses some options and functionalities that I think could be important. For example, I would like more languages options, as english is not my first language. I would also like (on my iPad) to be able to place the dashboard Widgets exactly where I want them (you can rearrange them and move them, but you are limited by them following a sorting order taking into account their size). I would also love to be able to change dashboards/rooms by swiping the screen, instead of having to press the room buttons in the bottom. Also, there could be a little better integration of some accessories (for example, some the functions that I have on the Apple Home app for my Logi Circle 2 camera is not present on this app, like being able to zoom the picture/video to see people/object closer). Apart from these things I am very happy with the app and would otherwise give it 5 stars.