Alphabet Squadron

This book was an enjoyable ride from the empire over to the rebel alliance. I found the inclusion of already established characters (Syndulla) to make the story nicely grounded while introducing the new characters and story. However I feel like there were elements that I won't name that also came from the Aftermath trilogy so in a way it feels choppy because I read those first but this happened beforehand?
Although I rated this 4* I found the ending to be drawn out and the fleshing out of characters to still be a little rough even towards the end. I understand this is the first of a trilogy (that I will most definitely continue to read) however this book definitely could have ended a hundred pages sooner??