Bordering on completely unusable, would at least expect basic functionality after paying 90€ for 3 items. Even after numerous app updates, as well as firmware updates — which take at least 5 attempts to actually go through while standing right next to the bulbs — it's literally impossible to do anything with this app. After it just took me 13 minutes (counted) to brighten the lights and change the color of a bulb, I just had to write this review. Biggest waste of money ever.