I went to see 1917 and I'm glad I did.
First, the crowd was mostly senior. There was no talking/texting going on, and everyone sat quietly enjoying the movie. That's a real bonus these days. I don't think the theme appeals to the younger set.
Second, the experience was nicely summed up by another theater-goer on the way out who said: That's the best WWI movie I've ever seen. That was true for me, too.
The cinematography was well done and certainly enhanced the experience. At one point I was so wrapped up in the movie I actually jumped when an explosion occurred on screen.
This is one of the very few flicks I've seen of late where I felt the ticket price was more than worth the experience (and Bunny and I see several movies a month on our weekly date night).
All in all, it's got my recommendation. I don't think you'll be disappointed.
Crusader Rabbit