This is my second Levi purchase from amazon, and Ive been pleased both times.  Levis tend to work well for me since i have a big butt and thighs, but these shorts do gap a bit in the waist.  The jeans I bought were high waisted and fit like a glove.  While these are by no means low rise, they're not  Mom shorts.  I still feel cute and trendy in them though!
Im 57 and 130lbs and got a 28.  A 27 would probably give me a perma wedgie.