You're getting the Takara version of the mold, a deco somewhere between US and Japan, and a sword. We all know we're going for the sword, the rest is kind of meh $20.00 is a lot for a sword. If you want everything it offers, then it's worth it.
I do have both SDCC Fortress Maximus as well as retail Titans Return Fortress Maximus. And I like both versions, my only gripe about retail Fort Max is his lack of a handheld rifle/cannon. Originally I wasn't too sure about the Master Sword, but it is definetly growing on me