I have just finished, and I'm kinda bummed if I'm honest. I loved Line Drive and was soo excited for Afraid to Fly but I got so bored reading it and it felt so repetitive. 
 I get Travis has chronic issues but the TENS machine and Mortin was doing my head in.. and Clints problems with his ex wife..just felt like Rhein problems all kept getting mentioned again and again with No real storyline beyond their problems. 
 I was glad we got a HFN for them but I would of preferred having more closure when it came to his kids and reading about Mandy and Travis meeting. 
 I read it, it was ok - I just wish it was more than what I turned out to be.