Since writing my original introduction post, it's safe to say my recovery has improved a fair bit.
I am able to get aroused now, and have erections, and it no longer takes me over 15 minutes to orgasm- same time frame as before.
Spontaneous erections are also beginning to return, though not as many as before.

Cognitively, I am also getting better. It used to be that I would read a sentence in a book and forget what I was reading by the time the sentence ended. Still a bit of work to do on the cognitive side, though, as I still do feel mentally fatigued by the late afternoon/evening.

All in all, it's been about a month and a half since I first noticed my side effects, and I do feel like they are getting considerably better. Hopefully by new years I will be almost 100% back to normal.

Good luck to you all!