I do SJC-ORD / ORD-SJC all the time. Love the flights. Living in south San Jose I pretty much drive past SJC to get to SFO, and I'd much rather take a Lyft to SJC than deal with parking buses at SFO these days. Only irritation is if I decide to spend Friday night in Chicago, there is no morning ORD-SJC flight on Saturdays. I agree that the Club @ SJC is just as good as the UC - probably better. No ticketing assistance but I seem to use that less and less these days now that we have mobile devices we can check in on after getting help from the 1K desk.