I have tried the Benefit Hello Flawless Oxygen Wow Foundation, it's pretty nice! I'd say the medium to deep shades generally lean towards more yellow tones and the lighter tone are more pink based.
I don't have sensitive skin - my skin is oily, but I love wearing it in winter when my skin is more normal/combination. The finish is really nice - very natural a little bit of a glow, so I definitely find I need to set it with powder. I was impressed with the coverage too, you can use it sparingly for light coverage and build to medium without it looking cakey.
I would buy it again, but for use in winter