I too like pads for commercial carpet, but they don't last very long. I have used green, red, and white pads and they all do the job. I went through three green pads on a relatively small commercial job about 2k sq ft. The white pad lasted about 5 minutes. The brush in the picture is softer than mine. I have a blue adjust a
glide brush and I have had it for 7 years. I don't scrub carpet with it much more but I use it all the time for rugs. I want to get a softer brush though. I also learned the hard way that pads have to be broken in. I must have tripped 5 breakers before figuring it out. I guess a softer brush would be the way to go. A new brush is on my list of things to buy.
Mikey and Ron say they like that super stiff brush for tile work. I have one of those and use it for concrete but the blue carpet brush works way better than the stiff strip brush. It glides over the grout and doesn't dig in imo as well as the carpet brush.