I like the way it expands

A little goes a long way, but extremely annoying if you get any on your hands.

It never creaked when it initially worked its way loose after 20 years...

I don't like the way it "expands" to fill gaps, pillowing out, making every repair unpredictable because what you thought would be a close fit between two pieces becomes a very noticeable seam of white spongy matter

I love the way it looks!

But, it worked out better that way