The sac event was good, but by far not that great as others we have seen in the past (but they are more than 1 ago now I'd say). Those skulls with just 70 essence were kind of a bad joke. But the biggest joke (for me, maybe my account was selected for bad rng this time) was the drop rate of ironite for opening the jack souls, the bugged strech goal for ultimate sacs and the drop rate of rare souls of any type during the event:

Ironite:
When the event started, I sacced 10 jack souls to see what to expect and those 10 souls at least gave 10 Ironite = 10% chance. Imagine what the next 99-stack of souls gave? Exacly, 0. The next batch of 70 souls the same, 0. Wtf? At least some of the vortexes gave 100 Ironite. However, due to sever lags and connectivity issues. including maclo errors during saccing, I missed out a few rewards (at least, some came after restarting the app), including 1 vortex.

Rare souls:
I opened 5 or 6 complete stacks of 99 rare souls, mixture of normal rares and class specifics, spread over 2 days and over these days. Imagine what? All these together gave exactly 0 5* characters, wow! Hence, no Van Helsing or Dracula. Because of that lack of 5* chars, it was hard to get enough 5* characters for the ultimate sacs. But hey? No problem, as this strech goal was bugged anyway. And I did the majority sacs on the last day of the event, in the hope that the issues would be fixed.

On the plus side (and really really crazy considering the issue above), I managed to get Icarus Eddie out of ~80 rare heroics, which is very nice!

Apart from the sac event I think october was ok in regard of events. But on the downside: we see huge server problems, but this does not stop the devs from releasing new stuff in a crazy high frequency. Another 2 new dungeons and an event forcing us to play other dungeons, and all that concurrently to the out of line (1000 frags for a character? Used to be 750!) dracula grind! Don't get me wrong, it's nice to "have something to do" in the game, but this is really exaggerated (to me).

Edit (forgot): But great idea to give us the chance to get one of the pay-only-Eddies now via achievements, I really appreciate that!