CO PC membership is nearly worthless to me as the vast majority of my flights are through airports that don't have a PC lounge. Priority Pass combined with a Citi Premier Pass card seems a much better option for the price.

For me, getting the SPACE in an exit row is more important that getting off quick, which isn't really an issue. Even when I was silver earlier this year, I managed to snag an exit row 100% of the time (when I didn't get an F upgrade).