As a previous poster stated, part of what makes these little vases so special is the unique styling. The rectangular shape and double hole features make it stand out, but the clarity and delicateness of the glass keep it elegant.
Mine is currently clustered with other vases on a chest of drawers, but I've had it lining a sunny window sill as well, and it looks great with light pouring through it.
One note though. Another reviewer said that it was tricky to clean and I agree. Because the holes are tiny and the shape is boxy, sometimes freeing the inside of dust & debris can be difficult. The same is true for avoiding water spots on the inside of glass after rinsing it out.