See, with respect to Harold, I disagree with him on the insulation factor. Wood is the best insulative material known to man.
With Jim 2000, whom I also have great respect for, his comment on movement is well founded, but if you do your work and your tests, you should not use green logs that do and will move. The logs should be completely or as best as can, dried by kiln. Of course there will be some moisture, but this is where the spikes, and glue and proper prep work comes in to control this movement.
Movement is a factor and more of one in a brick home, but again, all homes move around, this has so much to do with the area and the ground composition of your area. Here in Texas all grounds move and all foundations move regardless. That is why watering the foundation is such a major factor. Unlike MO. for instance, we do not have any bedrock. We were the Gulf for so many years and our soils are dirt and sand. In MO. the soils are bedrock not too many inches down. There is no shifting at all, unless on the San Andreas Fault.