I use the brush-type car wash about 90% of the time on our vehicles. Can't see that it does any harm to the paint, and they even have a "mud blaster" option if you have gotten the underside messy with mud or mag chloride.
In the winter it's too cold here to hand wash, and in the summer it's too hot. And I'm lazy.
In the winter it's too cold here to hand wash, and in the summer it's too hot. And I'm lazy.