This brush is amazing. I purchased this at Sephora, specifically because it was the BCA model. It comes with the sensitive brush head which I think is a good starter brush, after 90 days I replaced it with the normal brush head. *I now replace my brush head every 70 days - I think 90 is too long, I feel the brush start to soften, like when you need to change your toothbrush
My skin was visibly cleaner after the first use. It was super soft and smooth, there wasn't a trace of makeup or residue of SPF lingering. When I used my moisturizer, I noticed a completely different feel - it actually melted into my skin, not just sitting on top.