These are a solid purchase for the price. Functionality wise, there is a lot here - many colour options and varying tones and the app is easy to setup / use. The only downs side is that not all colours are created equal. The brightness of Red for example is very low while other colours are much brighter. Colours in general are much duller than normal white. As a normal white light, they brightness is great.
Overall, still happy for the price, but not quite 5 stars due to lack of brightness.