Car Co-op vs. Zip Car
I seem to remember this question being asked a while ago, but can't find anything in the memories. So please point me in the right direction if need be. :)
Anyway, I'm wondering people's opinions on Zip Car vs the Car Co-op. I live downtown, and don't have a vehicle as it's not really necessary. However, I have a trip to Seattle coming up, and may need a car to get there/back (it'd be from a Friday to Sunday). Plus, it might be nice to have the option of using a car if need be in the future. So, if I'm only going to be driving once in a blue moon, which company would be the better one to go for? Good experiences/bad experiences with either?
EDIT: I realize renting a car is probably the cheaper option for a weekend trip, however I believe you have to be 25, and unfortunately I'm still a touch too young. :(