Rushed this morning and was the first in line at 7am. I got H 21 and 23. It will be my first time seeing it from the orchestra (previously onstage and rear mezz), so I'm excited to see a new angle and hope it is good!
If I recall correctly, the benches are back to back and you can't pivot them. You could ask about sitting on the end sideways, but a lot of action occurs in that area so I wouldn't be surprised if they didn't want you doing that, but who knows!
For what it is worth, I sat in one of the SA armchairs and felt like I had the best seat in the house. Pierre has his back to you when he plays the piano, but there is a drum about three feet from you that he plays a couple times. At one point he put his glass down right next to me, and during his dancing in The Abduction, he shook his butt in my face. Also got lots of interaction with Helene, Balaga, Dolokov and many of the ensemble. The swiveling chair makes it easy to look around at everyt
I agree that Groban does not make or break Great Comet and you should see it regardless, BUT just to correct the above posters so that you don't get your hopes up, the composer (Dave Malloy) is NOT scheduled for this performance. According to the announcement, he is doing 10 performances all of which are in May and June, none in April.