No mistakes but my thoughts:
1. If this was intended as say, a printed booklet I would add a blank page on the end I.e. first blank page is the outside front cover and the last blank page is the outside back cover. Remember booklets always need pages to in in increments of four.
2. On the master page you could use tables for the days so it will be easier to fill in if you use it on screen with AP, and page numbers for the Week Numbers.
3. Have a Non Facing Page version for online use, this could be exported as a PDF with text fields added in Acrobat. Would be nice if AP developers would add this soon (along with other interactive functions like we've used for years in InDes).
Good idea though. The PDF version could be emailed out to clients with their individual company branding, or to family members as a sort of Christmas/Birthday card