Cheers
Don't have any other stuff of theirs yet, but have looked at some of their light sockets so will look into it and try and work out if it's worth it. Have like the look of their smart sockets to avoid the ballache of plugs into a plug!
Their wallswitches and lightswitches look good and work well. The app is a bit crap [it works, just not a great UI] but the integration with Alexa works well.
I run a mix of Hive and Lightwave depending on if I could replace the bulb (The hive bulbs came with a heating/water pack) or not.
You can group the whole lot into one group in Alexa if you want "Alexa, turn the sitting room lights to 50 percent" will happily do both types at the same time.