We have two venta cold mist/ultrasonic units.
However, Santa brought the flu for Christmas, and we needed another. I got a cheapie steam unit for like $13.
Honestly for winter use I am really liking the steam unit.
I've got both Vicks brand. One is cold and ultrasonic and the other is warm. The warm one goes in the bedroom to make sleeping more comfortable.
But the dry and cold is just sapping the moisture out of everything. Really uncomfortable this winter.