I'm in the process of going down the same route as Keendark and Steve - with the RM Pro. I have Alexa controlling my AV system (via the RM Plugin for Tasker - which works well until the Android device running it goes to sleep!)
It also controls Digoo plug sockets for the bedside lights using 433Mhz. All works very well.
I should receive my TC2 light switches soon and I am nervous about Keendarks blowing up. Do you have any tips/photos on what not to do? Have you managed to get one wired in successfully yet?
I'll post my experience as things evolve.