They are farther away from the airport, which is ok if coming from the south; otherwise, it's not so insignificant detour if you value time.
Perhaps for the same reason the wait for their shuttle is higher. I counted at least a couple of each hotel shuttles and 3-4 'park sfo' shuttles while waiting for them another day (I did call them up on arrival ).
Their prices are ok, but they told me they were not really doing the self park and forced me to use their valet service. Which, again, aside from the fact that they didn't explicitly say so in advance, would have been fine, but what I really didn't like was that my car came with driver's window down, most likely having been sitting this way under the elements, as I didn't think they'd used any covered parking -- in fact it didn't seem like they even had any. Should there have been any precipitation, the interior would've suffered.
Bottom line, I think I like my car just enough not to park there again. I will seek a covered option next time.
I booked self parking several days ahead of time. When I arrived, self parking was full. They offered valet parking but I didn't have a physical key with me. I offered to park my car myself in the valet area against the fence so it would not block anybody else. They wouldn't work with me.
Rowena in their office needs customer service training. Even if you can't solve the customer's problem, at least let the customer finish their sentence. You might be able learn a new solution but even if not, at least your customer will feel heard.
I will never be going back to this lot.