I really enjoyed this! Rhis starts out as a little silly, swept up in dreams of romance, but she comes into her own as a genuinely kind person. I love how she reaches out to people. I also quite enjoyed the romantic plot, and how it developed over mutual interests and such rather than instant attraction.
Ending spoiler: I agree with not getting married right away, but I would have liked to see more of Rhis and Lios actually together, for a stronger ending. The one letter a year thing was ridiculous - at least let them talk regularly, to keep the romance alive. It didn't really mesh well with the romance and suspended disbelief of the rest of the novel, imo.
Anyway, if you're looking for something light to cheer you up, I recommend this.