I disagree that the writing has deteriorated.

People complain a lot about the lack of foreshadowing of the mirror and the "Riddle can't kill Riddle" curse. But I don't think the lack of foreshadowing matters, because both of these things are minor details in the overall story line. Let's start with the "Riddle can't kill Riddle" curse. Voldemort wasn't just not killing Harry because of this curse. After all now that the curse is lifted he still isn't killing Harry. The curse is entirely unneeded to explain his earlier before, or his current behavior. Nor was the curse needed to resolve the current plot. Voldemort was in complete control of the situation all along.

So there's no deus ex machina. It's a sudden unexpected development, yes, but one that doesn't really affect the story. It's purpose was to drive home how utterly defeated Harry is. How he is now completely at the mercy of Voldemort, having no clever tricks or last minute saves. Also it gave us a nice cliffhanger. But you can take out the final lines from 111 and the first few lines from 112 and the story continues exactly as it does now.

The same with the mirror scene were Dumbledore gets defeated. Take it out, have Dumbledore never show up,and the story still continues exactly the same as it does now. Dumbledore is a side character. He needed to be got rid of, so neither Harry nor the reader would expect or hope for Dumbledore to show up at the last minute and save the day, but ultimate he's not important to the story. And Voldie getting rid of Dumbledore with relativele ease is entirely expected anyway. He is established as being much stronger.

Anyway, bottomline: I really like the story so far. Elizier is doing a terrific job of driving home just how utterly screwed Harry is. How completely outplayed and outgunned he is.

I'm really looking forward to the resolution. I have no idea what it is going to be, but I fully expect it to be glorious. I do know it won't be Harry casting "Problemsolvius" or someone showing up casting "Savethedayius". I know this because Elizier went to great length to crush that expectation at every possible avenue.

Of course, my disappointment if I am mistaken and the final solution does some completely unexpected deus ex machina, shall be big indeed.

And for the record: My prediction is still that Voldemort shall not be dead by the end of the story. I give that 80%. Up to a few chapters ago my theory was that Voldemort wanted to team up with Harry to permanently get rid of death, but that seems increasingly less likely.