Limited yes, but when a REAL automation system is at the helm it's transparent and integration is seemless.

I'm doing some pretty cool automated things at my house based off of my security system and C4 with caseta.

That's what I keep saying. When a automation system is integrated caseta is no more limited then RA2/homeworks/C4 lighting etc.

Also for the record I have never ever had a single Lutron product fail, EVER