It's been ages since I've posted on here but I felt inspired to add my two cents!
I saw this last night and have to agree with a lot of what has already been said: it's undercooked, awkwardly staged, and worst of all (the cardinal sin of theater) boring.
At the risk of being rude/blunt, this could have just as easily been titled, "Cynthia Erivo memorizes a large number of lines and says them back to you in a variety of accents, as quickly as she can".
This might well have been forgiven to some extent, if the production had iterated, in some interesting way, on what Dorian Gray put forth. Unfortunately, it does no such thing. Oddly enough, it felt at times, like it took deliberate steps backward.
I'll agree that the quality of the videos was improved but their execution felt lazy. Every single one was projected on the same, imposing screen; shifting (now and then) up, down, forward and backward, but never really moving in any way that could be described as, "surprising". I seem to recall Dorian Gray implementing several, smaller screens; creating a framework of visual polyphony. This, coupled with mixed media, puppets, unique angles, etc, kept things fresh.
There was also a marked lack of color. Granted this is Dracula so dark, moody, and void of color would seem the obvious choice and it was just that - obvious. It lacked any variety and by virtue of this choice, one's eyes began to ache/yearn for something new.
This stiffness and ardent refusal to do anything new bled into Erivo's deliveries which felt stagnant; like literal line readings. Even Dracula - a character begging to bubble and burst in violent eruptions of color, felt just as monochromatic, little-redeemed by the fuchsia wig sloppily tacked to Erivo's head.
In an attempt to end on a more positive note: one can't deny that this style of staging and the immense amount of concentration it requires to execute, is impressive, and while a 2 hour monologue doesn't afford one much opportunity to feel deep connection with many of its characters, it can, and does, lead to moments of awe. One such moment, counter to it's seeming simplicity (and inevitability), was when Erivo was finally allowed sing. Her voice - imbued with movement, color, and feeling - stood out in such sharp contrast to the rest of the production that one wonders why it wasn't utilized more frequently - perhaps delineating the undead from the living. Alas, the production used no such conceit and wound up feeling like a run-on sentence. :(