I hit all four terminals in about 55 minutes with a 20lb pack, feeling in shape. The mezzanine at Terminal E has the best view, but I forgot to take a pic. Picrel is the trailhead at terminal A.

I got lost a few times and had to bushwhack through a parking garage to find terminal C. The trail management is pretty good, but its being overwhelmed with invasive wildlife. I rate 2/4.

Warning to future hikers: the terminal order is A,B,C,E. There is no terminal D.