Awful
I was so excited the had finally created a new app. It was awful. Impossible to figure how to make scenes using individual lights. Forced me to use the new Rooms feature, then made its own decisions about the color of each light. Also decides how bright or dim they should be and and you CAN change it....but you cant save those. The old one lacked features, but the user interface on this one is actually a step backwards. Plus if you upgrade, if you try to use the gen 1 app (it says you can have both) it will load, but just forces you to use the new one.
Techno psych about
Philips Hue gen 1, v1.12.1