Hi Bac! and welcome.
I am recently converted to a new road bike, mine is a Look KG frameset with full Ultegra groupo, and I am loving it , after years of mountain biking and commuting on a hybrid, it is a revelation to cover the miles with one of the modern light-weight bikes now on the market.
I met up with a roadie a few days ago who was on a Trek 5200, man that is a really sweet bike .
Im sure you will have many an enjoyable ride to come, I`m aiming for my first century soon , think it will be quite soon as i managed a trip of 77 miles yesterday.
Regards Willi`c