My son has a similar sectional and they move it to clean underneath every so often.

On regular basis you can use a long handle duster to swish under the couch to collect or scatter dust. For real cleaning put sofa on sliders to make it easy to slide in and out. However, sliders can cause couch to move when people plop down to sit. I have one couch with legs and one that sits low to the floor. When the low couch is moved it does not seem to have very much dust under it.

Krissie55, those are great ideas, thank you! Yeah I can imagine sliders are dangerous to leave under the feet full time. And good to know that the low one doesn’t have much dust under. I get a ton under my leggy couch so I guess I was just assuming it would be the same with the low one. Sounds like I don’t need to avoid the low style after all.

I use a long handled 'broom' the has a long flat bottom with velcro on it. Comes with a micro fiber cloth that sticks to the velcro. I use this broom under credenza's that hold all my large kitchen gadgets. It gets the dust bunnies out which I then vacuum up