CGN is a pleasant small airport. It reminded me of BRS except that CGN used a jetway BRS didn't. Train connection is kind of weird. I wanted to use my free luggage trolley to the train door which means using the elevators which never are easy in any airport. The elevators in CGN are hard to find and the buttons are really confusing with the labels not clear and worn off: I ended up on the wrong floor several times in the terminal and in the train station I ended up on the wrong side of the tracks. The train ticket machine wouldn't read my VISA bank card so I had to go back through the terminal and crazy elevators to find an ATM machine which did work to give me cash to use in the train machines. When I arrived in the Cologne Main Train Station the same type of machine accepted my bank card with no problem and a train staffer was there to help also. Also flying out be aware that you can't get into Burger King on the other side of security. The only normal place to eat is Subway and the attendants there ignored me so then I went over by the Continental gate for a German place for Cappucinno and Crescent which was okay. Otherwise just a handful of shops and not much else so just remember that it really is just a small airport. The security seemed okay but the security staff doesn't speak English and there's no fast line for guests who know what they are doing but otherwise no real problem. (I have a metal medical implant and am too familiar with security in many airports.) Okay that's all. Probably comparable to HHN (which I've used many times) but maybe better because of rail link and closeness to an actual city.