MAXImum Indecision

Although this dress is a bit impractical and I really can't think of where I would wear it to, I'm strangely drawn to the Kenny maxi dress in forest green. It's on sale at Bad Joan for $51. The price is definitely right, but is it the wrong dress? Does it embody vintage elegance with a hint of grandma chic or will I just look like a grandma in it?

Good, bad or fab? Buy or Bye?