Love that one lid opens 4 compartments at once, that it has curvy sides to slide the pills right out, that it holds 2-3 weeks worth of the 4 pills I take 2x per day, that it fits compactly in my pocket or bag. Dislike that the latch broke after a year or two of use, and that it is priced much higher than more complex cases by Apex. But it was my favorite until it broke.