I have added to my contacts locations that we frequent. Such as, our credit union, downtown, Target, etc. I asked Siri to remind me to go to my bank when we left Target, but it just came up with the whole spiel about not understanding me, and explaining that I could set a reminder for a time or when I leave or arrive from/at a location.
Also, cannot call people based on their nicknames.
Also, cannot call people based on their nicknames.