It's interesting that after 9 years of 5th Edition D&D with no true CRPG representations of the game, we now have two: Solasta and BG3. What's also interesting is how different the two games are despite both being turn-based, isometric adaptations of the same TTRPG. Where BG3 focuses on story and character development, in Solasta those concepts are an afterthought at best. In Solasta, the game is about the fighting. In fact, I would argue the game plays more like a tech demo than a full game.
Or at least I would have. The base game story was a flimsy excuse to nudge you from one fight to the next, and there was basically never a solution besides hacking your way through a screen full of baddies. In Palace of Ice, by contrast, we have a game where the story is just an excuse to nudge you from one fight to the next, and there is basically never a solution besides hacking your way through a screen full of baddies. Which is kind of the same, except the story is actually pretty good this time around.
The best thing I can say about Palace of Ice is that it honestly feels like playing a pretty decent home brew D&D game with your buddies. One of the biggest weaknesses of the base game is that it's D&D, but it's lacking many of the trappings of D&D, like the iconic locations and characters of the Forgotten Realms. In Palace of Ice, the world gets fleshed out enough that the game loses the feel of being a generic hack and slash and more like it's grounded in something that makes the player actually care.
So I played through Solasta: Crown of the Magister, then tried to play it a second time with a new party but couldn't summon the interest, and basically forgot about the game for two years. Coming back to give Palace of Ice a try and not expecting much, I can honestly say I enjoyed this DLC, enjoyed what a true D&D experience they've crafted, and hope to see more from Tactical Adventures in the future. But maybe try to include more than just fighting, next time?