I liked it and thought the prose was quite good. I did have to watch a 1.5 hour YouTube video on the Sri Lankan civil war after reading the first few pages to get a basic grasp of the context though! I don't think you're likely to feel more engaged as you go on - I felt like an outsider all the way through - but the book does pick up and the final crescendo is pretty powerful and surprisingly moving. I'd say it's worth pushing through for.