Has anyone taken their CFI-A with the Allentown FSDO in PA? I haven't heard anything about them, and so far they've been very vague, just telling me to bring everything for the check ride. I have studied hard and think I am ready, but any advice would be greatly appreciated!

The practical test at Allentown should be no different than at any other FSDO in the country. Same PTS standards apply. Know your stuff and be confident, you WILL meet the PTS standards if you are well prepared.