Sonoff

I cant seem to find much about Sonoff on here.

I am doing a new build and looking at this system to integrate with Alexa.

The components are cheap ( £12 ish for a light switch, similar to switch a mains supply ) and the app seems to support scenes, times, Alexa integration etc.

The main drawback seems that it needs the internet so should that fail you loose your automation until restored - which does not seem a disaster.

I wondered if anyone had any experience / comments. To me it seems a good way to build a fairly economical system.

I am proposing to automate most lights and a swimming pool pump / heater. I dont wish to turn on and off appliances.

Any guidance / drawbacks appreciated