First the phone's design is pretty, pleasant to the touch, a feeling of robustness. It is lightweight content of its size (4.7 inches) and thin. Comfortable to hold in his hand. By cons you need a micro sim and not a sim and no removable memory card, however, is available in 25GB and 20GB internal memory available on Dropbox for 2 years. This is a good point for me even if I had not used Dropbox, it's easy, intuitive you just get used to the idea that his data is stored on a server.
The camera of the One X me a bit disappointed, it is good overall but sometimes pictures with a lot of noise, which degrades the quality (damage).
Another disappointing point of autonomy, I have not managed to pass the day in use (max 7:50) which is not much but I am trying to test the update provided by HTC to improve autonomy. .
The biggest highlight of this phone and the point to me is the most conquered the screen, it is simply stunning, clean, beautiful colors .. Really beautiful.
The processor is up, the phone is still fluid despite the large number of open applications, no display bugs; really nice.
The sound is just as beautiful and the improvement made by Beats Audio is truly remarkable. It is a pleasure to listen to music.
In conclusion, I recommend it even if for the moment the battery is the black point of the One X, the screen, the sound and the performance of its processor really convinced me.
If you have questions I try to answer with pleasure.