Shelly 1PM WiFi Smart Relay Switch - 4 Pack, Works with Alexa & Google Home, No Hub Required, iOS/Android App Control for Smart Home Automation, Wireless Light & Appliance Switch - Perfect for Home, Office & IoT Projects

Once I got my Shellys though the setup process, they have worked great--all 8 of them that I got. I would give an enthusiastic 5 stars if the setup went like it was supposed to, but that's what I'm here to warn you about:My issue was with the setup. The process calls for using the app on your smartphone with your smartphone connected to the Shelly as a WiFi Access Point. What they don't tell you in the instructions is that your phone or tablet still has to be connected to the Internet simultaneously to being connected to your Shelly via WiFi. You obviously don't have Internet though the WiFi while connected to the Shelly, so unless the device has a data plan you have to get creative. No matter how hard I tried, I couldn't get through the setup process without the simultaneous connection to the Internet.Compounding the problem is that the Shelly app absolutely refused to do the setup process on my iPhone running the new iOS13 released a couple of weeks ago. It never gave me the opportunity to enter my WiFi SSID & password, therefore the Shellys could never connect to my network. Perhaps it would have worked with iOS13 if the device FW worked better? Who knows, but that leads me to the FW issue:All 8 of my Shelly 1pm devices came with an old version of FW that barely worked even once they were set up. Luckily the old FW worked just well enough to let the Shelly app update them to the latest FW.What FINALLY worked for me: 1) Wired up the Shelly to power and a light. I would recommend doing this with a temporary setup at a table using a power strip, bulb, and light switch. If you have any difficulties with setup, you don't want to be standing at the wall box doing all of this. 2) I used my old iPhone 7 still running iOS12. Since that phone doesn't have a data plan, I set up reverse-tethering through my MacBook Pro to get an Internet connection via Bluetooth (google it if you need to). Again, the initial set-up process simply wouldn't work without your phone/tablet connected to the Internet by some method other than WiFi because that is connected to the Shelly's access point. 3) Once the Shelly is on your network, you can put your phone back on your network WiFi and let the app update the FW in your Shelly. 4) I think the Shelly Cloud also has some bugs during the initial setup process. I was able so set up most of my 8 Shellys quickly once I figured out all those workarounds, but a couple of them were still stubborn about getting set up. I just had to try over and over for a couple of hours until the Shelly Cloud made it through the process. 5) After all that, I then did the "easy" part of wiring the Shellys into my light switch boxes.Once I had my Shellys on my network and got their FW updated, they have been working reliably with my new phone running iOS13--no problems with either the app or Shelly Cloud. It's the setup that's buggy due to a combination of factors: a) at the time of writing the Shelly app running on iOS13 won't do the setup process; b) whatever phone or tablet you use to do the setup has to have a data plan or be connected to the Internet via something other than WiFi; c) the version of FW shipping with the batch of my 8 Shellys barely worked; and d) Shelly Cloud was unreliable when doing the setup process.FYI, in desperation I had my friend come over with his Samsung Galaxy and that didn't work for the setup process either. The only thing that worked for me was an iPhone running iOS12.Again, now that I've made it through the pain of the setup, the Shellys and Shelly Cloud have been working great. I have them integrated with Home Assistant using JSON commands, and that works reliably. I could now disconnect my devices from the cloud and Home Assistant can still control them directly.