I admit, my reluctance with anything sci-fi or aliens made me drag my feet when I started this. My brain was ready doing its internal blocking, with strange names and anatomy terms. But as I read this, I was pulled in by the gentle relationship and romance between these two different species.
Despite its short length, it felt complete. There was that tentative beginning as Serge and Een learned to communicate, then friendship and connection, to fighting for their chance (when government agents were making 'threats') into that wonderful ending.
So yeah, I really liked this :)