In general, the purchase is worth the money in the presence of speakers with voice assistants, of course. Different pros: Multi-color light bulb controlled by voice or through applications. Connects directly to Alice's speakers without additional gateways. Brightness is enough for a room of 15 sq. M. with a margin. Got cons: The light bulb is somewhat inertial. The light does not turn on instantly, but with a slight delay of a second and a half. It takes some getting used to. The biggest disadvantage is the complete dependence on the Internet. If the mains fails, then the lamp works in the last applied mode, while the analog switch works properly, but does not reset the light mode. A couple of times there was a situation when I had to wait half a day for the Internet under the lime light of a light bulb.