A book so good I want to learn French so I can read the rest

Characters
I love Leonor. She's a good voice to have when you're stuck in space; she grounds you, so to speak. When you have a character like her; passionate, flawed and insightful. The way she works through the speed dating is interesting and something I easily identify with. Not only that, it adds a level of internal conflict that some narratives miss.
We learn bits about the other crew, but it's those left on earth that are the most interesting. We have Serena, who communicates directly with the participants and becomes the 'host' of the broadcast. She's a piece of work, you'll quickly learn, but I want you to find that out for yourself.
Plot
It reads like a brilliant Sci-fi blockbuster. There are many threads in play and they change your perspective like a rubrics cube, waiting to be solved. Being the first in a trilogy, you go in knowing that you will have a resolve of some sorts, but there will be questions left unanswered to ensure you want more. It's expertly done so that it doesn't feel like it's the first in a sequence, but a story in its own right.
Writing
Being a translated story, there's always a worry that the writing loses something. This story, I'm delighted to say, doesn't. It's language is clean, its engaging and powerful. It makes for such a consumable, compulsive read.
I just wish I knew enough French to read the other two books in the series. Yes, they're already published guys but you need to have progressed further than a GCSE in French to be able to access them