I tried the insulated styrofoam hives for several years and never once had a hive survive the winter. We finally gave away or burned every bit of styrofoam hive and plastic foundation and went back to wood hives, all wax / wired foundation frames. Much better success at overwintering and much faster buildup. Insulated hive bodies also don't breathe at all, and we ran into problems with moisture build-up and mold with some of them. The other major problem was that the ants love the insulation and every single hive ended up holding one or more ant colonies.
I am not in a climate where I would consider styrofoam hives, but their inability to breathe would concern me greatly.