Try saying that really fast, I dare you.
I thought it was a bit of a con on behalf of Selley’s. Sell a half full bottle of “Super Glue”, and call it a feature.
But it works extremely well. Being able to brush the super glue stops the things I’m joining, from ending up like a water soaked girl. Which incidentally, looks like this.
Downsides? None that I can think of.