It's like this, man if you've seen enough crime in the United States you'd laugh at Ecuador's. Yes, it's in Ecuador but It's nowhere as bad as you'd hear.
There is cartel action happening in a couple of cities and on occasion they shoot it out but it's usually them offing each other more than it is killing innocents.
As for petty crime in Ecuador, it is no worse or less than the rest of western South America. It definitely isn't Brazil tier in comparison if you're concerned about that.