| I’m a long-time traveler, having been to all 50 states, elite status on most airlines, and traveled to or through a lot of US airports. DIA is a monstrosity. Arriving, it took forever to find a way to get to baggage claim - I walked the terminal over taking the train as suggested to avoid crowds but there were no easy ways to get back down to baggage claim, eventually took an elevator. The RDA train to the city is super convenient, but the escalator to get down to it had a closed sign blocking it with no alt offered - eventually found an elevator to take me down. Departing was a nightmare. Getting off train, no easy signs for where check in is, but it dumps you at United, which had lines out the wazoo for everything. Security was snaked for miles and miles. I would hate this airport in particular if I was flying United - on what should be a light day of travel, long lines for everything, most not distanced. I actually had to stop and look up where Southwest check in was on my phone - never have I been unable to navigate an airport based on signage alone. TSA was a nightmare. The north security has shorter lines but I, like many others in front of me, had bags pulled for extra screening. I waited an additional 20 minutes for this check, bunched together with others. They had to check the pockets of my backpack, which were filled with coins and other random junk and has passed through TSA screening at least 10 times with everything in it with no extra search needed. I then darted off to the train to get to the gate and, not being familiar and with no signing, I accidentally got off at the A gates because A51 was prominently called out on my boarding pass - but actually gate was C42, that was just my boarding position. Absolutely no signage or announcement about airlines are at what terminals and every terminal looks exactly the same. I barely made the flight - I was the last passenger on. I hate this airport - it’s massive, confusing, and crowded.