It’s not that there’s anything bad about the book.  It’s kind of clever in it’s own way: it’s basically a thinly disguised get-ready-for-the-changes-that-come-when-there’s-a-new-baby-in-the-house book.  The difference here is that the unasked for surprise that mom and dad brought home is a bear.  Some problems are the same (broken toys, busy parents); some changes are different (a bear can lift him up to see in the mirror and hold a broken tree branch).  The thing is there are so many of these books out there, and a library really only needs so many, and I think there are better ones.