Depends where you live in southern Mississippi. I spent 6 months looking at the destruction. Most was south of I10 from the Pearl to Ocean Springs and some in the tornado/wind areas north.
I saw very sips left in the areas I was in. Problems with hold downs (ground and roofs) and keeping the panels together. The panels are rigid, but the structure itself did not have continuity and ended up somewher north.
There is no argueing that they are cheap and fast. Being an engineer, I recognize the strength of the individual panels, but question how srong a structure really is. Beacuse the panels are so strong and rigid, the amount of load put on any connectors is much more than you normally see (no "give"). With proper connections, they can be as strong or stronger than normal stick construction in severe situations.
If you ever plan to add on to to a sip structure, you will have some limitations and it can be costly.
Without a doubt, the structures that performed best in the storm surges were the concrete/masonry home that held up well and were much easier and cheaper to renovate with out the mold problems.
Often, I saw two indentical homes north of the coatal railroad line (great storm protector). Usually the home with vinyl siding was trashed. It there was a brick veneer over the wood, there was enough unplanned structural rigidity to rebuild. I guess that is no surprise to someone from the area.