Hello. I bought a Retina MBP 15 model. I like it very much but there are two things that make me really mad. 1) Ironically the screen it self. All the normal resolution contents are seen like crap. In this forum itself the elements in the 'new topic page' are all blurry. And sincerely I think that the retina optimized text itself is not precise and clear as the non retina model, where the pixels are bigger so you see it very decided and your eyes can focus on it better. 2) The UI is often laggy. If it is laggy with its own OS I expect to get worse with MAC OS 10.9. I wanted a MacBook which could be well for 2-3 years. This model is going to be a **** in one year I guess. Thanks a lot.