Swapped the AP520 platform/SPD pedals on in place of the folding pedals.
The bag is huge. The bike seems easier to carry just folded than in the case, but I'll put it in the case so it doesn't mess up the seats. The case comes in a case that folds inside out and zippers back up as a storage compartment when the case is in use, which is nifty.
The clamp basically locks a pin in place to hold the frame together, then locks a cam lock (quick release) onto that to clamp the frame together solid. It's very secure and sturdy from what I can tell.