The only thing I do not like about the bike is the Sora Brifters. My bike had them, and I wound up getting a set of Ultegra shifters on ebay. I am much happier now.
The Sora brifters has brake for up and thumb for down toggles
The other brifters in the Shimano line have the same lever for up but the down is on the inside of the brake and is much easier to use.