I love it. I'm only part way through the first book but it gives me a way to actually work through the book and to test the knowledge gained.
With other books I'm not always entirely sure what I should be doing. Or if I'm doing the right thing, I don't know if I grasped the material sufficiently to move on. I end up simply playing through examples and not really getting the point. Or maybe I did get the point and I should go to the next section but there is no way to test that.
I actually never really understood why most chess books aren't structured this way. I know some are reference material and others are like encyclopedias but I mean, every other textbook for any subject is structured that way.
It's like trying to learn physics by reading a novel about Einstein.
You can’t go wrong with any of the books you’ve mentioned, in any order. As a follow up to Soltis, I found Mauricio Flores Rios, Chess Structures: A Grandmaster Guide to be outstanding.
I’m curious what you think of Yusupov. After just the first volume, it has changed the way I think at the board. He does make you work, which is why his lessons sink in. My plan is to work through the whole series.