At one of my location, I have a ST V2 that works without any issues.
I just recently got another house to setup and with ST V3 out of stock everywhere, I went ahead and bought a used ST hub V1. Setup went without any issues and things seem to be going fine (but only have 4 sensors currently).
So my question is if there is any major difference from the V1 and V2 or even V3 Hub Variant? I know V2 has a built in battery but I have my V1 hooked up to a backup UPS. I would be most concerned about functions, speed of response, security lacks, or compatibility for add ons?
Just wondering if it would be worthwhile, once V3 comes back in stock, to change out my V1 hub and go thru the trouble setting up everything again.