I was on the fence seeing reviews about this in aus & here but thought for the price I'll try it out, it was worth the risk. I've been using it for 6 months now I think and it has worked very reliably and does what it's meant to. I'm using it in the tuya app rather than holman and have had no problems with this whatsoever. I do have it on the outside wall of our living room which is where one of our wifi nodes is. I used 2 old varta 15min recharge batteries and 2 alkaline and they got to 10% over the 6 months or so. Not bad.
Definitely will buy more.