In May 2022, I did the Augmented Reality tour twice I felt it was so good. It is set up in the crypt and it explained a good bit about the history of the altarpiece and the cathedral using digital images. I did not feel it was gimmicky. I would definitely go for it! Plus I love crypts, lol!! I will also add that I find the Virtual Reality programs a little disorienting. The Augmented Reality glasses allow you to see thru them so you can see the floor, walls, other people and more importantly for me, where I'm going, lol.
You can spend as much time with the altarpiece as you want. They do not chase you out after a certain number of minutes.
I also recommend if you have compact binoculars to take them with you. The Altarpiece is in a glass cube and is in such detail that I wanted the binoculars to look at the hundreds of different flowers, the attributes of the saints, etc.
This is one of my favorite art pieces....it is spectacular. I saw it in 2019 when it was under restoration and watched the restorers work with what looked like dental picks and Q-tips to go centimeter by centimeter. I see from the website they have taken some of the panels to the museum to continue restoration. If you just do a day trip you might not have time to go out to the MSK museum to see them at work. If you do have time, I found it vastly entertaining, lol.
BTW, it is quite chilly in there so even if it's a warm day, take a long sleeve layer with you as you might need it!