We get Tilly back, and not just her, but also Dr. Culber!
The effect of the ship partially submerged in the Mycelium Network was quite interesting. Surprised no one got caught by the barrier between realspace and mycelial space. I guess they ran out of redshirts on the bridge?
The explanation on how Culber got into the Mycelium Network is a bit ... vague, as are the complications in getting him back a bit convoluted.
Looks like Section 31 was a bit more recognized in the 23rd century than it was in the 24th century. I wonder if something happens that causes Section 31 to fall from grace in Discovery, or later in the planned Section 31 series?
Still no Spock, they seem to overdo the teasing in this season. It's not just Spock, it's also the anomalies that we still have very little idea about what they are. I don't write books or TV scripts, but I do run RPG campaigns, and I know it's dangerous to leave all the reveals and major breakthroughs to the end. On the other hand, we had a big breakthrough here - Culber is back!
Star Trek Online Advancement: You start with lowbie gear, you end with Lobi gear.