Naturally I had to try them!
They are pretty smart, and starts to auto learn the moment you plug them in. Setup with the Tellstick was a breeze, just add the switch as a protocol arctech self learning switch, give it a house number between 1 and 6710883 and a unit number. And off you go!
I have just added the first of the three so I can’t really comment on the reliability but expectations are high.
These have three memory locations, so perfect for tellstick plus remote and future fun.