Apple should be ashamed of selling such an appalling product.
Replacing existing low energy bulbs, the Hue bulbs (2 of 4) flickered continually, which makes being in the same room distracting.
Periodically, at different frequencies, but at one point about once an hour, the bulbs switched themselves off and back on. Which would be annoying in any device, but stops a light being useful at all.
Colours were OK, and the setup was as simple as promised, but the basic product is just useless and not fit for purpose.