Will it be comfortable to work in all year?

Yes, and it needs to be, because clients sitting still get cold far faster than you do while working. Good insulation holds warmth on a February morning without a heater running constantly, and climate control handles summer when a full room and a set of dryers push the temperature up. We can zone the heating so a treatment area stays warmer than a reception corner, which matters if you offer massage and wellness treatments where the client is undressed and still.