Been looking forward to this for ages, and it was absolutely worth it!
It re imagines the base XCOM 2 Campaign with new bosses and factions. And they are superb fun. The game’s been seriously upgraded too - looks better, runs better, and feels far better balanced. No longer does it feel like you have to win every battle - there’s a lot more flexibility to how you can run it and feels like they’ve made the early game a lot more manageable.
The best feature though? Photobooth! You can create posters of your soldiers, which then appear in your base and in the game levels. It is superb! Really sells the story of your XCOM army over time.
Other things? There’s a bond system now, where soldiers have different bond levels with others and fighting together strengthens them, allowing chain abilities. Also, if one dies it sends the other into a berserk mode that guns for everyone. Which is neat
Below are some of mine: