I've never had problems with AMEX myself, and sometimes in the past I've found their service very useful especially when traveling. For instance before there were international ATM networks when I needed cash abroad I went to the local American Express office and cashed a personal check, which only a Cardmember could do. Also I think it's worthwhile maintaining my AMEX Gold Card account because it's the oldest tradeline on my history; a clueful underwriter should recognize that "Member Since 82" means I got my AMEX card when they were pretty hard to get, and even for the FICO-score-only robots it adds a few points from the account age.
TU 791 02/11/2013, EQ 800 1/29/2011 , EX Plus FAKO 812, EX Vantage Score 955 3/19/2010 wife's EQ 9/23/2009 803
EX always was my highest when we could pull all three
Always remember: big print giveth, small print taketh away
If you dunno what tanstaafl means you must Google it