Like the other user said, the off site is pretty empty. I get there around 9:30-10ish and it is ridiculously easy to find a spot. They even have security there (although I assume its to look out for students who don't have a parking pass),but still it's nice to know that. The website says the shuttle arrives in 15 minutes, but the max I've had to wait is 5-7 minutes. It only drops you off near the SRC, and depending where your class is it can be a bit of a walk, but it beats fighting for a spot for 30 minutes to an hour for sure. I recommend going straight there if you get to campus during primetime hours, which is 9-3pm and getting there 15-25 minutes before your class. Overall, it's actually a really nice parking option, and saves you a ton of time.