I'm going with 3.5 stars for this one. I really enjoyed it, but there were some things that bugged me or just simply was not to my preference in romance books.

I really love this series and all the characters. It's quite frankly heartbreaking to see these men try to learn to live again after their injuries. (Note: I'm not the biggest fan of soldier romances because of my pacifist heart. So, it doesn't really add or take away that the injuries happened in the army.)

Bean is such a sweet guy. He has a traumatic brain injury (TBI) that affects his short-term memory a lot. He often forgets stuff, and he needs to keep a notebook to remind himself of what happened every day. I think the authors did a wonderful job portraying him and his struggles. It was compassionate but honest, and it did not try to hide how messed up TBI can be.

Jarek is also so sweet and patient. He has his own baggage, but he's also simply a good person. He's not judgemental about Bean's TBI. He wants to learn about it and live with it rather than ignore it or make Bean out to be incapable of living, like how Bean's mother does. I also appreciated a lot that Jarek's best friend is a trans woman. Ivy's such a hoot and the bestest friend to Jarek.
His baggage is his ex and his failed marriage. Though we don't really get too many details, it's obvious he struggles with how he-s been treated, and he let himself be treated for so long.

Bean and Jarek's connection is so powerful from the very first moment. And even though Bean doesn't really remember him at the beginning, it just make their bond that much stronger.
There are lots of spicy scenes as one of the aspect of their friendship with benefits is that Jarek teaches Bean about gay pleasure. The lots of spice is one of the aspects leading to a lower star rating. I am just simply not a fan of too much spice in my books and the whole "experienced lover/newbie" trope.

The other thing that bothered me was the miscommunication and third-act break-up based on a misunderstanding and jumping to conclusions. I saw it coming from miles away, and I did not appreciate it. It's not a good plot point. Especially when you write about a character who has to rely on his friends and family to fill in the blanks of his leaky memory. It almost seemed cruel from Jarek even if his feelings were understandable.

My favourite part of the book and the series are obviously the friendships. Especially between Nash and Bean. It's just so wonderful to see a male friendship bloom like theirs. 

Overall, the book is good. It has its faults, it's far from perfect, but it's enjoyable, and the characters are worth it.