Invisible

Engaging quick whodunnit my Dad passed along to me, fastest I've a read a book in a long time. How do you rate a book like this. It was a good read and I liked reading it but the writing style (which is what I typically fall for in a book vs story) was matter of fact and to the point. I feel like 3.5 stars fits.
I will likely read the sequel and maybe some other Patterson books.
Also, first actual paper book I've read in years.