The lack of formal IFTTT support is quickly becoming a thorn in my side, especially with alternatives like https://www.scoutalarm.com . I have read many accounts of your customers looking to integrate your otherwise awesome service with the rest of the house, including smart lights, HVAC, and security camera. I've learned that it is much BETTER to integrate than trying to corner the market for everything by cornering yourself off.
IFTTT is quickly becoming (or rather become) the standard, and shouldn't present a serious problem for SS programmers to create an integration. Please 1) let me know if I can help in any way and 2) explain why IFTTT isn't offered yet/when it will be offered/why it isn't on your development roadmap.
Alex (a happy, loyal customer who really wants to see you continue to succeed, but will have to start considered alternatives soon)