If anyone is unsure about purchasing this DLC, as someone who felt indifferent/meh about Baxter during the base game, I'm obsessed with his route, which totally pleasantly surprised me! Gives him a lot of depth and his romance path is so rewarding and sweet. Their romantic arc reminds me of "the 1" and 'Wildest Dreams" by Taylor Swift. Love love love! Definitely worth the purchase.
Minor spoiler under cut
*SPOILER: I love that if you attend the Soiree in Step 2 with someone (I've only ever went with Derek so far, unsure if it's toggled if you go with Cove too but I'm assuming so) you can meet cross paths with Baxter and the game pays attention to that and adds dialogue that wouldn't be there if you hadn't met him then. Makes it even sweeter! Unsure if there's any path where you can interact with him more, only tried it once.