I also used tried out Car2go last week - was a painless process to checkout / check in the car and go. 
 
The hardest part about the process is finding a car.  As expected many people grab a car from downtown after work to go home - there are times it's a 5-6 block walk to the closest car.  According to the map, you can see how cars seem to cluster up around frequent users that are one way trips - a far off spot in West Hillhurst always seems to have 3 cars around it. 
 
The c2g website doesn't show any downtown parkades accepting cars - anyone know a designated parking spot in the downtown core?  Website seems to claim there is. 
 
I'm quite happy with the service though and as long as a car is in reasonable proximity when I need it I'll use it.  I do wonder how this will work in winter when it's -30... not sure how well these Smart cars will start in the winter.
		 
		
		
		
		
		
		
		
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