Thanks for the responses. I am focused on X10 because as shown in the diagram of my HCA X10 Lighting System here https://1drv.ms/b/s!AtOSsBq4n5Uxg7ZCfpS9DPTlpdZFJw?e=dAcAB6 I have an extensive X10 installation that I designed and installed 22 years ago. There are zero issues with X10 signaling getting through at my 4500 square foot house with the XTB-IIr amplifier/phase coupler (See the diagram for the link to XTB-IIr information.), and a few X10 filters on some devices in my house. It's just automated lighting, not a life or death, or security system, and the lighting state of the house in sych with the controller 99%+ of the time. If the controller gets out of synch because of an unusual or random X10 signal failure, the next time the controller turns OFF/ON a lighting scene, the signals get through, and the controller is back in synch.

The X10 bashing by vendors like Smarthome and UBP is mostly because if one just uses basic X10 products, with no signal amplifiers or active phase coupling, X10 can and often does have signal reliability issues. These vendors have moved on to other protocols and obviously want you to buy their stuff, not X10. BTW, from what I can see SmartHome's Insteon is failing as a product and they'll be bankrupt soon (as they already were when they were acquired a couple years back). Why do I think Insteon and UPB are not worth investing in? Powerline control of Lighting will go away soon in all forms...

With regard to you trying X10 or UBP at your new house I think it's pretty obvious that all lighting will be controlled with WiFi enabled switches, lightbulbs, etc in the near future. There are WiFi enabled LED lightbulbs at HomeDepot and Amazon now for as low as about $8.00 each https://www.amazon.com/dp/B07R481KCT/ref=cm_sw_em_r_mt_dp_U_xFLTDb17TMQ49 , and WiFi dimmer switches for about $24 https://www.amazon.com/dp/B07RBQX7BR/ref=cm_sw_em_r_mt_dp_U_tyLTDb6TM1S9B

So these WiFi Lighting Control devices are ALREADY cheaper than an X10, Insteon or UPB switch. As WiFi control chips go into mass production, the cost of WiFi controlled lighting devices will fall even further below the cost of Insteon or UBP, AND be more reliable than any PLM protocol. So X10, Insteon and UPB will be dead. I'm going to talk to Kimberly about this, hoping future releases of HCA will add full support Wifi enabled devices via various WiFi interface devices, same as HCA has supported multiple PLM interface devices. I'm not talking about slow cloud based interface to WiFi lighting as HCA's support of Alexa and Google Assistant are today, rather I mean a local WiFi interface device that is physically at the house and on the house Wifi network.