BCL
Engineer
Not that it would matter to me since I'm not going to make S+ again, but apparently United is changing the terms to requiring a same-day boarding pass (arrival or departure) to access the club starting this August. They say it's for all "customers" which I would assume means Amtrak S+/SE. Granted I would have qualified at SeaTac last July, but I'm not sure how they expect most people to get past security without a boarding pass. I have heard of people requesting a gate pass just to access a United Club. I suppose there's also the possibility of employees of another airline being members.
https://www.united.com/CMS/en-US/products/travelproducts/Pages/UnitedClub.aspx
Effective August 18, 2016, all United Club customers, including members, are eligible to access United Club locations only when they have a flight arriving or departing on any airline the same day, and must show a boarding pass for entry. Customers who are accessing United Club locations to use a conference room do not need a boarding pass for entry.
https://www.united.com/CMS/en-US/products/travelproducts/Pages/UnitedClub.aspx
Effective August 18, 2016, all United Club customers, including members, are eligible to access United Club locations only when they have a flight arriving or departing on any airline the same day, and must show a boarding pass for entry. Customers who are accessing United Club locations to use a conference room do not need a boarding pass for entry.