Phiips Hue is way much more easier to get a solid mesh (thanks to powered/plugged devices) than on a deconz which need some better knowledge of what you are doing.
You have also good starting package with lower price to start with but it will be more close to Hue products of course and need RJ45 port for the bridge which is good for connection but less for positioning).
What do you do if your deconz is stop working correctly after an update ?
No more light till someone fix it ? I don’t see this kind of failure since years with the Hue bridge while on deconz or z2mqtt can sometimes have troubles then light is not responding at all. I never get that with Hue since more than years.
My choice have the condition to limit the impact on the people not knowing HA.
woman acceptance factor and kids 
So yes my advise to have reliable lights and if 2 networks is the way, why not 
About FP1, I prefer the DFrobot DIY mmwave with ESPHome