I, too, use BE from time to time (I rotate between Smashbox's Healthy FX, Maybelline Age Rewind, Clinique and BE) and here's a few tips I found help me when using BE:

1. Make sure your skin is WELL moisturized. I have odd combination skin...I'm oily AND dry on my forehead, shiny along the nose and normal on the chin. If my skin is moisturized well, I feel the BE adheres better. You definitely can't moisturize and then turn around and put BE on, though. When I've done that on accident, it looks streaky and...well, honestly, genuinely crappy.

2. Smashbox Photo Finish. It's a silicone-based makeup primer and OMG. If you wait a minute or two after applying (basically letting it settle on your skin like you would a moisturizer), BE looks amazing. They also have a version with SPF 15, a bronze-tint version and a couple of different color correcting ones. I faithfully use this under ALL my makeup (even my Maybelline) and it is...well, besides Red Bull and chocolate, it's my ultimate vice.

3. If you have them, mix the Bisque concealer and the Well-Rested into your foundation and apply it to your whole face. I do this all the time and I love the results. I also mix my two colors easily when I need to (e.g., I've gotten a little bit of sun or I just need the extra pop of color).

I actually plan on wearing my BE next week for a wedding I'm in. Needless to say, I'm doing my best all this past week and all next week to make sure that I'm faithfully following my skincare routine so that my skin looks it's best!