I have the Solia 1875W dryer. It's decent. I am happy with it, but I don't find it amazing or anything and would consider trying I different blow dryer once it dies. It has three heat settings (off, warm, hot) and technically three airflow settings (off, low, high). So if you just turn on the airflow to low, and leave the heat settings to off, it blows out cold, unheated air. I love that feature.
I don't find the warm setting to be too warm. It definitely feels warm to the touch, but it takes a while for me to feel the warmth all the way up to my scalp (generally until my roots are drying). My hair takes forever to dry, though, and tends to hold onto water for a while. So, this could partially be due to porosity and density rather than my dryer in particular.