I can't say enough about the Cleanse Off Oil -- I love love LOVE it! (Sometimes I feel silly for being in love with my cleanser, but oh wells! )
For work I wear a lot of eye makeup and I love that it takes off everything : waterproof eye makeup, foundation, lipstick, all of it. My eyes are pretty sensitive, and I find that it is MAC's most gentle cleanser for the eye area. It's non-comodegenic as well, so no breakouts here.
And like Allie, I can get about 4 months out of one bottle.