I'm coming from the Smartthings world and have been using WebCoRE to handle a lot of automation, from setting hue bulbs to random colors on motion, to turning on lights when the door is unlocked as well as differing rules based on who's home etc. There doesn't appear to be a limit, though there's sure to be a practical one, but at the moment I have something like 30 rules (as well as a bunch that aren't from WebCoRE).
I'm considering switching because I like the local control - Wink, while nice, doesn't have a very sophisticated rules engine, and Smartthings operates almost entirely in the cloud.
Semi-related: can more than one Almond hub be on the network - and useful to the Home Automation component?