The two times I went, I made sure I was there early to get certain seats, and both times they accomodated my request. The second time, I went by myself, and they told me they'd seat me where I requested, but be prepared to move if they needed to seat a couple of people together. They reserve the right to move you no matter how early you get there, but usually they have been good about fufilling people's seating requests.
"We like to snark around here. Sometimes we actually talk about theater...but we try not to let that get in our way." - dramamama611