I do love the concept of a show dealing with something that was first introduced in another series. I jumped on the Enterprise E Dominion War books back in the day. I am however, torn on the use of the Founders. The idea of radical Founders is an interesting one, considering the whole idea of breaking with the Great Link is an anathema of what they are trying to recreate. However, without Rene Auberjoinis and Odo, it feels like a grave mistake. It is going to be missing a big piece of that story line, that just makes it harder to do. Much like how a DS9 reunion will always have a big hole in it now. Worf's roundabout mention of Odo really hit me hard.
The episode was great in getting Crusher and Worf the screentime to bring them up as being in the show. I loved Crusher being back in sickbay, and seeing Jack being useful in sickbay. The talk between Crusher and Picard was great, with pretty much all the reasons I suspected she left being mentioned.
Dorn was great as Worf. His voice has definitely changed, but I'm glad they leave it as it is. No digital fakeness needed. "Son of Mogh, House of Martok" etc, etc, was great. I still like the Worf and Raffi pairing. Let them bond over being bad parents.
It was fun seeing the reversal of the Picard and Riker dynamic. It is good to remind people that Riker had his own command, and he doesn't need to blindly obey Picard. He was a bit rough on Picard, though.
I did like the Sydney/Seven scene. It was good to see that not all the crew followed Shaw's lead in terms of attitude. Besides, you gotta keep setting up that Seven spin off, now...