Originally Posted by ijgordon

2 points:
1) a drawback to the Amex Plt vs. CO PC that I don't think was made clear is that with Amex you have to be flying the particular airline in order to get into that lounge (NW, CO, DL). This is problematic when flying out of MSP on CO, where there is no CO lounge, and they won't let you in to the NW club, whereas they would if you had a bona fide CO PC membership. Obviously avoidable if you fly NW to begin with... Not sure if there are other examples of this.