Portable air compressor

I'm curious if the folks who are recommending against the Viair have actually used one. I don't have a motorhome but did have 125psi trailer tires for a few years. The 450P didn't struggle with them at all and topped them up decently quick (even the day I picked up the RV from a storage lot and the tire started with 40psi due to a nail).

I wouldn't hesitate to get one for a motorhome.