I loved TLH and also the 3 STEM novellas that was so fun. This one was okay for me. I liked that it was another smart female with Bee but I got a bit annoyed with her. 

Here's my rub with this book:
-  First 25% of the book ... nothing happens. I almost DNF but continued since so many loved it 
- Bee's insistence that Levi hated her despite he telling her multiple times that he never did 
- The mysterious cat at NASA. When there is so much high tech, that is just way impossible to let a stray in
- It kind of creeped me out that Levi was pining for Bee after the first meeting and he hasn't met anyone despite knowing she was engaged
- The ending was over the the top for me

Thank you @berkelyromance for a copy of the book.