I have a smartthings hub and a couple of devices, no dimmers or switches yet. I tried a leviton switch from home depot and it worked once.

A friend has the smart things and many devices and good luck with this particular item:
http://www.amazon.com/dp/B00E1OVFAK/...I2YAVHBMNJ1C12

Hope that helps a bit.

Keep your receipts for all the LED lights. The 'Lasts 20 years' isn't a reality. Most LED devices I've installed, have died within a year. Manufacturers will do everything they can to get around replacing it under warranty too. Every excuse on why you made it fail, installed it wrong etc.