What is this Fall of Sunset Shimmer? Part of the IDW comics?

Yep, I think the comic was actually a convention exclusive.

Or something, Matrix had some problems getting it iirc.

It was a side-story exclusive to the SDCC 2013 version of Issue #9(?).

So I can't buy it then? :(

You can, just be ready to pay a lot.
Or read it online

Watched the season 1 finale, it was nice, defintely a step up from it's "predecessor" the ticket master.

Wouldn't the Best Night Ever's "predecessor" be Suited for Success?

I guess, it's just that the ticket master came to mind first :p

The SDCC version of Issue 9 I picked up for $10 shipped, so it's not super expensive.
I intended on reading it online, but at the time, the only available scans sucked total ass, with dark pages, slanted scans, and annoying glares.

Anyway, if I recall, The Ticket Master was actually the first episode, which may explain why it's quality could be considered less than other episodes.

First episode as in the first stand alone episode, right? :eyebrow

As in, the first episode developed.
I can't find a proper source to back it up, but I do remember reading that.