Single Point of Failure? No thanks
A single point of failure for every garage door? Wonderful. So if the company's servers go down, every customer's garage door will end up being stuck, closed (or open) for hours. Please tell me there's a manual override. There is? Then ditch the company before it has a blackout, and just open the door yourself, manually.
I really do not see the sense in everything being connected to the internet. My personal bugbear is the Hive-style heating nonsense. Wow, I can switch on the heating remotely before I get home? Is that a problem I've ever needed to be solved? Right now I get home early, the house is 5 degrees cooler than I'd like, I switch on the heating, it warms up. A basic timer caters for 99% of my needs. If I'm late, the house has been warmed up without me and the extra expense will probably not force me to re-mortgage the dog.
I certainly do not need to open my garage door from anywhere in the world. The only place I need to open it is when I am directly in front of it, probably driving up to it or out of it, but certainly not driving while looking at my phone and trying to find the correct app to open the door.