As a lover of the old frame, seeing some favourites get an old frame print for the first time (Gary, Stinky Imp,
Cranial Plating,
Hollow one,
manifold key) is very cool to me.
Other than that though, it's not particularly exciting. Original
time spiral was supposed to be a really fun draft environment, but with everything going on in the world, drafting isn't really an option for many people. It certainly isn't for me. Unfortunately I think it's quality will be hugely overshadowed by the state of the world.
Conceptually I think it's phenomenal. I would personally like to see the "make a new card in the old frame" become a regular thing for masters sets. I don't think the old frame should come back or anything, but giving people that choice and option is wonderful.