Ahhh!!! I've been considering rewatching FIREFLY lately and this made me want to do that even more!!! I remember when I first saw the cover and read the description for STARFLIGHT months ago that it sounded like it had a similar vibe to FIREFLY and it really did!! The story, the characters, it all was absolutely fantastic!!! I really, really loved this book, and I'm already eagerly looking forward to re-reading it in the future! 
 While it did have a similar feel to FIREFLY, the plot and story in STARFLIGHT was still completely different, but it did have that whole space cowboy/bandit type feel with a cast of crewmates that are more family than coworkers. I loved that it had that same type of dynamics, and I really loved the characters!!! Solara and Doran were amazing and I loved slowly getting to know the others!! I also absolutely loved the world-building and I'm always a fan of space as a backdrop to a high-stakes adventure! 
 If you like FIREFLY, or even just stories involving some badassery in space, I think you'll love STARFLIGHT, too. It also gets mega bonus points because I "ship" Solara and Doran so freaking much (pun totally intended :P)!