Shelly 1 switch relay to replace Insteon on off relay

I’ve been using Insteon devices pretty much exclusively for the past 15 years or so. Had an old relay fail a few days ago and can’t get a new one. There are almost no Insteon devices currently available. Took a look at wifi relays and saw the Shelly 1 switch but I have no experience with Shelly at all. Do these work easily with Home Assistant? I just need something to control an outside light but my only options are Insteon and wifi. I don’t have any zigbee or zwave equipment.

There is a dedicated Shelly integration available, which works very well.

Thanks. Is the integration cloud based?

No, the integration is totally local.