I didn't dislike this ... I just felt like it's already been done, and been done better? At least a little more realistically (Man Called Over, Britt-Marie was Here, How the Penguins Saved Veronica, Remarkably Bright Creatures ... and there's more). The original connection with the mouse was believable, but then I felt like it was too over the top, which just impacted the my perception of the book as a whole. And even in the end, it didn't seem like our MC wanted all the people over (was she just not feeling well?)

Fredrick Backman can write 3rd person/present tense in a way that doesn't annoy me (that I don't really even notice) but here, I was always aware of the tense. It felt awkward.  The chapter set-up was interesting ... listing the day of the week, with a few chapters (then a couple where the day didn't even have a chapter, just time passing). 

I wasn't sure about the ending either ... cute idea, but ... really?