From a practical standpoint I think the two main selling points of the bow are, as mentioned, the greater level of forgiveness because of the deflex by definitiondesign and the extreme low levels of recoil and felt vibration.

From a technical standpoint the design is, again as previously mentioned, more efficient and potentially more tunable because of the center pivot (limb twist) and new cable/string arrangment on the cam (cam lean). There are other points to consider but I think those are the major ones.