These were very similar to another smart bulb I recently reviewed that also didn't require a hub. They were easy to set up, which took about 20 minutes total. You have to download the specific app, register for the app, add the lights so that they are recognized and then go to your Alexa app (for Echo users) to enable the skill...which links to the app you downloaded and registered for. You can also group multiple lights in the Alexa app to be controlled with one command. No hub is required.
The advantage these had over the other brand was that you can change the color temperature in the app or by Alexa voice. The only problem that both brands share is that the light is not very bright when switching to color. They're good as accent lighting, but not bright enough to illuminate an entire room when used as color bulb. They look like any other bulb when used as white. The work really well and look nice though, so I give them two thumbs up.
Pros: Clear Instructions, Easy to Use, Great Dimming, Lots of Features, Nice Design
Cons: colors not very bright