Welcome to the forums! I'm a huge fan of the Sony Xperia line - I've always wanted one! The X looks like a very sleek and gorgeous phone! If you are really interested in buying it, see if you can get your hands on a display model at a store - Best Buy, or one of your carrier's stores (in Canada, Bell sells Sony products - my carrier, Rogers, seems to be really in limited supply when I ask
); and see how it feels in the hand. Would you be comfortable looking at/using that phone for the next two years or so?
What is it about the X that intrigues you? What are you looking for in a smartphone? If you have any more questions, please let us know!