I really don't like the appearance of those joints. And yeah, I think I'd be pretty wary of the rubber torso, as well.
Im still extremely uncertain on this figure, I really like how it looks but Im still not sold on the gummy torso, If this figure was sold with all the accesories as a regular release and not be missing the couple extraaccessories the exclusive one had I would probably roll the dice on the figure, but as is I dont understand why just add the Excalibur and the aditional horns and make it an exclusive figure (to me it seems those accesories should have been included in the regular release).As for the rubbery torso it looks like the articulation works well enough and the mold looks good overall im weary on the material, these tipes of materials tend to break or suffer in the long road with plastic degratation more than more rigid plastics (they also tend to be a magnet to dirt and become sticky if not kept really really clean all the time)