Non-spoilery review! 
 - The Uglies series takes place in a very well developed world. It was obvious that a lot of time was spent on world building, and providing enough detail to show the reader exactly what Tally's world looks and feels like. With all the new technologies, and new culture, this planet is a completely different world. 
 - Uglies really captures humanity and the ideals we have about beauty in our modern world. It's slightly terrifying to see what our future would look like if we continue to place so much importance on our looks. The basis of the Ugly/Pretty world is that certain features are genetically superior, and more desirable. It is important to note that a Pretty is not what we would consider pretty in our time. Pretties are the product of a mandatory cosmetic surgery designed to exaggerate certain features and make everyone look similar. Uglies are the natural state people are born in. 
 - I enjoyed how critical the book was about the people called "Rusties," who are supposed to be what we would consider modern day society. They explain how Rusties nearly destroyed the Earth, and what legacy was left of us after the world changed. 
 - The writing was clear and easy to read, making it a great book for younger teens who are looking to get into reading. I remember reading this book when I was in ninth grade, and being completely sucked into the world I was reading about. 
 - The characters in this world had their own slang, making their dialogues interesting, and often hilarious. 
 Full review on my book blog, Bailiwick.