I just emailed this thread to the GTAA
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Here is a link to a Frquent Flyer group called Flyer Talk. You can get some really good feeback from seasoned travelers. This link provides a number of useful observations from people who travel the world and if they are having problems navigating T1 you can be sure that others visitors are as well. They are a helpful bunch and I encourage you to take a look at what they have to say.
http://www.flyertalk.com/forum/showthread.php?t=371999
Sincerely
Cattle