I also use the Sephora Midnight Studio traincase... it's awesome. I find it especially helpful that the trays can be divided (unlike the MAC case) and the dividers are all adjustable. The lock and detachable strap are also handy. I debated on just using tackleboxes for all my stuff but I like the look & sturdiness of this traincase much better. One drawback about this case, though, is that it tips over when the trays are fully extended, even if I have heavy items in the bottom compartment - but I just rest the back of the top tray against the wall in order to keep it upright, so it's not really a major problem.