He managed to:
more or less find suitable actors.

Yeah, right???
Hobbits – well, okay, where are you going to find good-looking actors who are 90cm tall? I already wrote about Boromir; Aragorn is too small and doesn't look like a Ranger; they should have taken the actor who played Van Helsing. Galadriel – the Morning Star of Middle-earth??? If you happen to dream about her, you'll wake up in a cold sweat. Agent Smith – no comment. Gandalf, with his periodically appearing idiotic gaze, and so on.

convey the main plot of the book.

The plot, yes. But not the meaning.

convey the main atmosphere of the book (albeit clumsily in places, but still).

I didn't notice. Although there were some creative ideas: if it's a Balrog, then it should be big and horned.

make money (he's not an altruist, after all).

This cannot be considered one of the film's merits. However, Jackson clearly learned the saying, "We live well as long as there are many fools."

Furthermore, I'm already tired of defending Jackson on various forums.

And you shouldn't, because it's an ungrateful and, moreover, unjust task.

I would like to hear your opinion about the adaptation of "The Master and Margarita."

I'd give it a passing grade, between 3+ and 4-. Woland is debatable, but not bad; Behemoth and Koroviev are a 5. Margarita and Yeshua are good, as are many others, except for the Master, who doesn't even deserve a 0. The procurator didn't impress me much. The atmosphere is well-maintained, but the film doesn't look as dynamic as the book reads. It's a difficult work to adapt, and we could have expected much worse.