Shaun, you and I are exactly the same height, 5' 7", but the proportions of upper body to leg length can vary quite a bit from person to person. I have not checked into whether the geometry of the bike you are interested in is anywhere in the ballpark size-wise for you.

My current bike measures 54 centimeters from the center of the head tube to the center of the seat tube, measured horizontally, not following the slope of the compact geo top tube. This bike is almost a tad too big. The ideal dimension for me might be a top tube measurement of 53 centimeters and a 52 centimeter top tube will also work fine. I would suggest that regardless of differences in the body proportions between you and myself, the top tube dimension for you should be very close to that range.

This top tube dimension has a great effect on bike fit, comfort and how much power can be delivered to the pedals, even allowing for the fact that fit can be tweaked quiet a bit with different stem lengths.