The protagonists Aleks and "Dylan" are probably two of the best characters in the coming-of-age genre I have ever seen. If you are a fan of character development, this show does it masterfully, especially as to Aleks. The development of Aleks from being a "spoiled brat" to a selfless hero is beautiful, and you genuinely feel like you want him to succeed. The romance between the two protagonists was also utterly captivating. That is the strength of this show.
The weakness is that the show didn't really play up to those strengths as much as it could have. The plot itself outside of the friendship and romance aspects between the protagonists had to do a lot with very interesting twists and turns in politics and war and started off amazing, but it really lost its way at the end. No spoilers, but let's just say that there are a bunch of plot holes behind a certain capture. In any case, the politics-war plot was unsatisfying, and it also pretty much caused the ending of the romantic plot to feel unsatisfying as well. It also just makes you feel like it would've just been better to see Aleks and Dylan interact more.
Yet despite all that, when the two did interact before the ending, there was definite chemistry between the two. The way their personalities interacted, especially when it comes to subverting gender expectations or even stereotypes, worked very well with these two.
Without going into detail, I also think the ending in the show diverged from the book in which it is based? It seems like an extremely significant change too. I don't know which ending I prefer when it comes to our protagonists. I think I'd have to see a season 2 to decide, but I definitely think this show warrants a second season, especially given how much the politics-war plot ending left a lot to be desired.