Sonoff T1 Touch - Safety recommendations?

Hi!.

I bought a couple of these switches to try them out (link) and was wondering if there are any extra security precautions I could/should take when installing them. Did some googling around and just found a bunch of tutorials on how to use them and a couple threads on Reddit about how sketchy all the Sonoff stuff is so not really sure what to believe haha.

My plan is to flash them with Tasmota to link them with my HA install and put one switch in my bedroom to control a light then the other in the batroom to control the 2 lights we have there. Also, I’m from Argentina so they’re gonna be connected to a 220v mains.

Anyway, any thoughts?.