I also have a TimeLine and I love it. My only problem so far has been the front inner tube. I don't know if it's a function of the rim or what, but I've l had two tubes tear right at the valve stem. Weird. That aside, the bike's been wonderful. It's very smooth, very fast. The speed is addictive, and it rides well on the stock tires.

I'm about your height and weight, and I bought a 56cm. It felt comfortable, but I went to one of the local shops and had a fitting - a slight adjustment to the saddle position and an extension for the steerer made a big difference. I have toe overlap, but it's not severe. You've already used the fit calculator, so you're already ahead of the game, whichever bike you choose.