Does anyone know if these books are any good?

I think the author is Regina Hale Sutherland.

I have one of them on my shelf - Acting Thier Age, but it's been a year or so since I read it.  As I recall it was a pretty good read - brisk pacing and a light but interesting story line.  Haywood Smith also has some Red Hat titles, and they're more like Chick Lit for the older chick (hen lit).