While I wouldn't call them the best thing since sliced bread, overall my experience over the years is that they take my money and give me my tickets.
Today I bought some tickets. I vent to the venue, saw there was a show, clicked on Buy tickets, took me to Ticketmaster, logged on, found ticket, paid via local payment provider[1] (verified on phone, super simple), and I got my tickets on email. All was just a few clicks and over in a couple of minutes.
This is my typical experience. Is US Ticketmaster particularly worse, or am I living in an alternate reality?
Or are there some other aspects that I'm missing?