I'm surprised the Roubaix gearing is as low as it is; 50/34 x 12/30 gives a lowest gear of 31". I considered the Roubaix when I was looking for a light tourer. The Trek Domane 4.3 also looks like a good option.
Actually it is 50/34 x 11/32 for a lowest gear of 28". So the change to 11 speed added a gear to the lower range.