It's possible you are seeing more bugs on Android than I'm seeing on iOS, and I can see how that would knock off a star for you. The AI is weak, hopefully they will update that. I think the campaign is actually pretty fun, as it provides a series of chess-puzzles and gradually introduces new pieces and abilities with a variety of different goals. I like the artwork and the 40k theme, but I understand not everyone does, and the animations do get repetitive quickly. I'd be torn between 3-4 stars, but there was s a lot of subjectivity, so I'm glad you gave this whatever number of stars you felt your experience with the game merited. I suppose the content of the review is more important to readers like me than the total number of stars, although 2 stars would have scared me away from downloading this game if I hadn't already done so.
I guess the constructive feedback behind my initial reaction is that there seems to be a wide range of grading scales used on PT nowadays, depending on the game and reviewer and publisher, whereas they used to feel more uniform. Perhaps that is a natural consequence of adding many new writers and going through some transitions with the site.
On the plus side, I think the writing quality is still excellent, and I'm very happy that the number of reviews and news articles seems to be increasing, making PT more vibrant. Thanks for doing what you do so well and thanks for responding in a totally reasonable way to the post I made in a moment of disbelief.