I've been using the Estee Lauder Double Wear Foundation in Warm Vanilla for a month now.
It definitely has great staying power and a beautiful, non-cakey finish.
I usually use shade 23 in cushion foundations, and the Warm Vanilla shade matches my skin tone really well. For those with a slightly darker complexion, the Sand shade might be a better fit.
I don't have any visible lines or demarcation on my neck area, and the color blends in seamlessly.
This foundation may be best suited for those with oily skin types, as it has a somewhat matte finish.