I tried this a while ago when I was using fake tan and experiencing a little skin irritation with my normal foundation.
The BB cream gives quite a sheer coverage and I found the medium was a little dark even when tanned, so I ended up mixing it with a lighter foundation, which also made the product last longer.
But the main issue I had with this product is that on my skin it seemed to go patchy.
In terms of sensitive skin, I found that my issue in the end was more the tanner so I can't comment on how it really works for sensitive skin. But it was comfortable to wear.
I definitely didn't find it corrected blemishes though.