I park at ParkSFO 10+ days per month, I travel a lot on business.
I agree with the previous post, the service at ParkSFO had been going significantly down hill. I noticed that the bus waiting time was going way up. On one occasion, several customers went into the office to chew out the manager on duty, she was not very sympathetic and had a "you don't have to park here" attitude.
That being said, I have noticed that the service has improved in the past month (December). If it's true that they're under new management then I will keep using them as long as I see improvements.
Regarding miles, I had accumulated over 3000 miles since June and I hadn't received anything from them! I finally received two statements showing a balance ~2200 and that 2000 of those miles had been sent to United. Then, a few weeks later, I received another statement, this time it was different (which may indicate the management change) and it included 4 coupons of 500 miles for United. Apparently, the transfer is not automatic! You have to "deposit" these coupons using the United web site. Oh well, at least I'm getting my miles, finally!
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1K Man