"Other interesting things" is what I'm scared of, I guess ;-) There's the trade-off between the day-to-day convenience (I do love being able to shout at Google to make it open the garage door), and it becoming a black hole of time that keeps me away from things I'd rather be doing. I also guess I'm currently just putting things off, since I do really want to automate more. It'd be nice to not have to walk around and turn off what seems like a million light switches every night, for example.
With the interface, can you still use the alarm as a "regular" alarm? Because the other thing I don't want, is a house that 's so complex that my wife and kids can't handle it without me.
Konnected makes 2 products.
The basic Konnected device replaces your Alarm board and therefore leaves the PIN pad unused, which is IMO not great and as you say no wife, kids and future buyers friendly.
This is why the Konnected "Interface" product is IMO superior. It plugs "in parrallel" into your existing system and (provided you can program it, which sounds like you have been able to) lets you monitor and acto on it without disturbing the built in controls (PIN Pad, backup battery, etc..)
So short answer: yes. Anyone could use the Alarm normally. But again, I guess the end goal is for people to even have to use those things and have them turn on and off as needed (we did have a rather surprised baby-sitter who got the alarm armed on her as both my wife and I left the house with our phones... You live and you learn, I guess)