This is a reivew of the Print on Demand version: Overall I'm happy with it. Print-wise, this is the best I've seen Planescape text outside of original printings. Extremely easy to read. The paper stock feels great. And I prefer to have the box set material collected in one volume. The art is washed out, but still looks pretty good (I'd say 7 out of 10). That was explained by DTRPG before purchase. The maps are reprinted in the back and would be hard to use without breaking the spine. I'd recommend the PDF for reprinting maps for use. Speaking of the maps, there are still a couple that have been swapped as noted by others in the comments section. Don't expect this to be fixed from the previous version.
I'd definitely buy the other box sets once they have the option.
[4 of 5 Stars!]