I switched from the Luxe brush head after noticing it was just too soft and I'd have to follow up with a heavy duty exfoliator to get a deep clean.
Now, while the Luxe brush head is literally heaven on your face -- perfect for truly sensitive skin that can't take even the slightest amount of tugging and those who are bb/cc cream wearers -- the Acne Sensitive brush head is like it's cool, rowdy cousin. Tough enough to remove excess dirt, oil, makeup and dead skin, but "soft" enough to not irritate you too much. The bristles are shorter and more packed together so there is a noticeable difference in firmness. It really grips the face!
I do miss the extreme softness of the Luxe, but with the Acne Sensitive brush head, I only have to wash once :)
A plus for my acne pickers alliance, this brush helps coax the guck to the surface. So if you're itching to pop a painful bump, but need it to rise a bit and sit overnight -- BUY THIS BRUSH HEAD. Speeds up the turnover of whiteheads.
I also have notice that I don't get clogged pores as much as I used to. Mine are VERY LARGE in my T-Zone across the nose. I just seep oil...all day. With consistent use of this, I've noticed the oil production has slowed a bit. I'm sure it'll help with additional tricks in my skincare routine, but this baby is the bomb dig, yo.