Worth noting that the calzone golem's berserk is the kind where "no known method can reestablish control," like the clay golem. The clay golem isn't asterisked, but I think it should be, simply because DM interpretation can be the difference between an inconvenience and permanently losing control of your character with one unlucky saving throw. Looks like Debatra thinks the calzone golem should get the asterisk.

But there might be another reason for that. Since there's no type given for the magic immunity fire-based NA bonus, it should stack with itself, which means that there's probably some way to give the calzone golem arbitrarily high AC.

Ignoring those two abilities, it's a 6 HD melee fighter whose attacks are comparable to a first-level fighter with 18 Strength. (+5 attack bonus, average of 12 damage, which is kinda like 2d6+5, which is less than you'd get with a +4 Strength bonus if you used a two-handed weapon like a greatsword.) I could try to quantify how many lost fighter levels its other abilities are worth, but it's less than five, so -0*.