The government has done a bang-up job of presenting the Terracotta Warriors in a setting that is worthy of them. With almost 40,000 visitors a day, they have the ticketing process refined and streamlined. The farmer who found the pieces of a warrior back in the mid-70's was paid 30 yuan for his discovery, but now has a cushy job in the visitors center in the ticket pavillion signing guidebooks and posing for pictures with tourist -- for a fee, of course. From the ticket pavillion, you can take a trolley bus to the pits (5 yuan extra), but hold on! The drivers like to race each other, and careen around corners and pass each other with abandon. (I guess it gets boring ferrying tourists back and forth!)
When we visited in mid-July, there were a LOT of visitors and tour groups, Quickly move to the left or the right when you first enter Pit 1 -- everyone seems to congregate at that top railing just inside the door to look out over the warriors (it is a show-stopper), and people can be 3 or 4 deep as they try to get pictures of the warriors as well as pictures of "me and the warriors". You get a closer view from the sides, just a few steps to the left or right. The back of the exhibition area is a continuing archeological site, and while there is a placard near the equipment that says "No Photos", it is not enforced at all.
Pit 1 is about the size of two football fields, and is completely enclosed. (It can get stuffy in the summer, but standing by the frequent exits along the side will catch a breeze). Pit 2 has officers and horses that have been unearthed, and Pit 3 has some examples that have been glassed in for closer inspection.
Instead of a trolley back, you walk back (shorter distance than the drive) passing NUMEROUS stands selling terracotta warrior replicas, jewelry, stuffed animals, etc. There was a charming tea shop that was a nice break from the crowds, along with other eateries, etc. The whole area at the exit was rather shamelessly commercial, and after the reverence with which the warriors and the discovery of the site was treated, it's a little jarring. One of the pesky aspects of the tour was the incessent sellers of warrior figurines. There's a small box that contains four or five figures. When you first enter the building, the cost is 300 yuan -- by the time you are leaving the exit gate, the price has fallen to 5 yuan. :-) We were probably approached by at least 15-20 young men wanting to sell us figurines, some of them quite persistent. (One, after following us for 20 or 30 yeards, I had to finally turn around, glare at him and yell "NO!" before he finally backed off.)
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.