I saw this, went by myself, sat upstairs. I never connected with it, which I think is because it is small, and quiet, and subtle, slow moving, and at times dimly lit, and whatever magic it conjures up just didn't reach some of us sitting upstairs.
When it was over the woman sitting next to me (we hadn't spoken before this) turned to me and said, "That's IT?" She laughed, pointed out people in the orchestra section giving it a standing ovation, and she said, "If they give a standing O to this, they'll give it to anything!"
A man behind her, also a stranger, said that he agreed.
Watching the Tonys I liked that one number much more on TV where the cameras were close up than I did from where I had sat (about midway up in the mezzanine) when I saw it live.
Since that live experience, whenever I've talked with a friend who's seen it (about a dozen), I asked what they thought, and 100% across the board the ones who loved it sat in the orchestra section, and everyone who didn't like it sat upstairs.
I know that's anecdotal, not scientific, but if you're thinking of going, I'd suggest you sit close.