Saw the show on Sunday and loved every minute! I want to see it again and again, but since I have to fly to get there, that's not feasible.
My group of 5 had 3 orchestra seats and 2 balcony seats, so I sat in both.
Left orchestra ZZ seat 23: I sat here for Part 1. View was great! Yes, you miss some stuff at the top of the set, but nothing major. There is one special effect you miss but you get the general idea of it. The stage did not seem that far away. You can't see facial expressions, but I used binoculars for some of the more intimate moments, and that worked perfectly for me.
Right balcony row D seat 24: Part 2. You miss something near the end. Pretty sure everyone in the balcony does, except maybe row A people. People in the balcony literally stood up trying to see it, which of course helped no one. The railing itself is not that obstructive. It's the people in row C that obstruct your view, because they all lean forward to see over the railing. The girl in front of me literally sat on the edge of her seat, hunched forward, and at times even rose from her seat a little bit. Since we were on the end I was mostly looking over her left shoulder anyway, so she only obstructed things that happened far stage left/house right.
I've seen a few posts that have said "get a booster seat, you'll be fine." My experience was that they are reluctant to give booster seats to adults, even if the adult needs one. When I sat in row ZZ, the person in front of me was literally a head taller than everyone else in his row. Now, I probably could have seen around him, but since I was in the last row of the orchestra and wouldn't be affecting anyone behind me, I asked for a booster. The usher asked that I wait until a couple minutes before curtain, and then I could get one if any were left. Then the usher who was near the booster cushions gave me a hard time, saying they were reserved for children, until the other usher came over and told her it was okay since I was in the last row.
For part 2, the friend I was swapping with told me ahead of time that the girl in front was super tall. The girl had been seated after the show started so my friend didn't realize that it wasn't her height, it was her positioning. I asked for a cushion at the beginning of Part 2, and the balcony usher said it was fine, but when I went to get one, they said they were only for children. I asked if I could get one right before curtain if any were left, and he said okay. Because of the staggered seating and being on the end, I wasn't really in front of anyone in that instance either. Also other adults in the balcony had boosters, so not sure if it was just a different usher for Part 2, or what happened.
Anyway, that was my experience. YMMV. I preferred the orchestra seats to balcony, myself, although some of the effects were probably cooler in the balcony. I think the ZZ seats were much better for viewing the acting. I didn't feel like I was as far back as I actually was. So don't be afraid of rear orchestra being too far away. Just be aware of the overhang because it does affect your viewing. But for $40/part I had no complaints.