The first thing I want to mention is parking. I bought our tickets online, and it said that it includes free parking at the garage. I got a ticket to enter the garage, and I wasn't sure how to get the free parking. All you have to do is show your online confirmation page at the booth when you leave the garage. It was nice getting free parking!
They recommend getting to the Arch early to get through security, and even though there was a line it moved quickly. The visitors building is a nice clean place, and they have large signs so you can easily see how many minutes until they are accepting people for your tram time. They have an old fashioned general store, and another store with Arch and other items to purchase.
You do spend several minutes in line waiting for your tram to board, but I thought it seemed well organized and it went fairly quickly. The ride is about 4 minutes up and 3 minutes down, and you can stay at the top as long as you want. The whole thing did take about an hour with the time we spent in line and at the top.
The trams fit five people, but they are small so people might have an issue if they are clausterphobic. I don't like heights, but even though the Arch is really tall it is a small enclosed space at the top so it isn't scary at all.
If you own or manage Gateway Arch, register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.