I do like the subscreen updates in this DX version, and as a whole, overworld screens and maps look much better than originally; but these changes are pretty subtle and, as far as I can tell, the only noticeable changes in this DX version that jump out at me. A simple but important improvement I can think of is that BoaB DX now has 8-way movement, which is a very nice thing considering the large amount of damage tiles and other obstacles made 4-way movement in BoaB a real pain at times. One important point I didn't see Russ bring up is that, while playing through, especially in those hybrid overworld dungeons with many entrances, is that it's a complete crapshoot where the player is going to respawn after saving or F6-continuing. I can't recall if that was a major problem in the original BoaB, but it is in this DX version. I quit in frustration many times when being forced with backtracking because my character respawned in an unpredictable place.
I understand why the plot is still very convoluted with "everything but the kitchen sink" seemingly thrown in, in terms of crossovers from other video games, because BoaB DX is afterall a fan reconstruction. I really can't forgive how the script is still a mess, in terms of grammar, proofreading, and needlessly-long dialogue strings, and honestly, it hurts my brain trying to follow along. The lens of truth is also still pretty much mandatory in BoaB DX, for why Russ mentioned, and you are going to be in a world of hurt
Spoiler
Those things said, I agree with Russ that BoaB DX fails in its purported mission to remake the original quest in much of any significant way. Russ' points are all valid and I also do not recognize enough changes in this DX version to call it more than an update/polish. If I were to go on the merits of the update alone, and how the update improves the original BoaB, I would rate the DX version a 2 as well. However, taking the quest as a whole, and what it is, and so as to not discourage new players who have never played BoaB, I will give this a 4. The good elements and gameplay from BoaB are still there and certainly worth experiencing if you never have played through, but be warned, there is still a whole lot of baggage throughout.